Timestamps: 0:00 Introduction 0:43 3-Dimensional Geometry 2:57 Coordinate Planes in 3- Dimensional Space 4:34 Represent a POINT in Cartesian and Vector form 6:25 Represent a 2D LINE in Cartesian & Vector form 11:17 Represent a 3D LINE in Cartesian & Vector form 14:07 Direction Cosines of a Line 15:40 Relation between direction cosines of a line 19:26 Direction Ratios of a Line 22:05 Direction ratios & cosines of line passing through 2 points 27:12 Problem 1. 31:47 Equation of a Line in Space 33:45 Line through a given point & parallel to a given vector 39:20 Example 1. 42:37 Example 2. 45:33 Equation of a line passing through two given points 47:44 Example 1. 51:09 Skew Lines 54:10 Shortest Distance between Two Skew lines (Vector Form) 55:40 Shortest Distance between Two Skew lines (Cartesian form) 57:35 Distance between parallel lines 58:37 Plane 1:00:10 Equation of a plane in normal form : Vector 1:01:25 Equation of a plane in normal form : Cartesian 1:02:18 Example 1. 1:04:31 Example 2. 1:06:36 Plane perpendicular to a vector & passing through a point 1:10:00 Example 1. 1:13:36 Plane passing through 3 non-collinear points 1:17:28 Example 1. 1:23:16 Intercept form of the equation of a plane 1:23:52 Example 1. 1:25:37 Plane passing through intersection of 2 planes 1:28:07 Example 1. 1:31:35 Coplanarity of Two Lines
Great Lecture maam, Thank you for this. Additionally, At 13:52 ĀB vector will be = 5î + 2j + 3k and At 45:01 it would be Lambda(b) + a vector so we would add it. Finally the answer will be (3 lambda+5) i cap + (7lambda - 4) j cap + (2 lambda +6) k cap. Posted so that no-one makes any mistake.
Those who are preparing for CBSE board 2023-2024 these are the deleted topics:- Coplanar lines Cartesian and vector Equation of a plane. Angle between (i) two lines(apparently there's confusion about this topic), (ii) two planes, (iii) a line and a plane. Distance of a point from a plane Thanks ma'am it was an amazing lecture ❤(completed one day before preboards 👀)
@@Koshal-yt6us ig u wanna loose marks in numericals . Gr8 👍. I agree with you Concept is most important and the way ma'am teaches is awesome 💯😎. But the wrong calculation also takes our marks in exams ryt,? 😄😇 Just think bro 💥💥
0:00 Introduction 0:43 3-Dimensional Geometry 2:57 Coordinate Planes in 3- Dimensional Space 4:34 Represent a POINT in Cartesian and Vector form 6:25 Represent a 2D LINE in Cartesian & Vector form 11:17 Represent a 3D LINE in Cartesian & Vector form 14:07 Direction Cosines of a Line 15:40 Relation between direction cosines of a line 19:26 Direction Ratios of a Line 22:05 Direction ratios & cosines of line passing through 2 points 27:12 Problem 1. 31:47 Equation of a Line in Space 33:45 Line through a given point & parallel to a given vector 39:20 Example 1. 42:37 Example 2. 45:33 Equation of a line passing through two given points 47:44 Example 1. 51:09 Skew Lines 54:10 Shortest Distance between Two Skew lines (Vector Form) 55:40 Shortest Distance between Two Skew lines (Cartesian form) 57:35 Distance between parallel lines 58:37 Plane 1:00:10 Equation of a plane in normal form : Vector 1:01:25 Equation of a plane in normal form : Cartesian 1:02:18 Example 1. 1:04:31 Example 2. 1:06:36 Plane perpendicular to a vector & passing through a point 1:10:00 Example 1. 1:13:36 Plane passing through 3 non-collinear points 1:17:28 Example 1. 1:23:16 Intercept form of the equation of a plane 1:23:52 Example 1. 1:25:37 Plane passing through intersection of 2 planes 1:28:07 Example 1. 1:31:35 Coplanarity of Two Lines
45:01 is correct guys, I believe she wrote x1= 5 because according to the formula, “x-x1/a” the value “x-5” will only be possible when the value of x1=5 (When x1 = 5, and a= 3 =>x-5/3 will be the ans)
ALL THE BEST TO All 12thies FROM UR UPCOMING BOARDS , currently I'm in 11th . ( AFTER I FINISHED THIS CHAPTER WITH CLEAR CONCEPT I REALISE IT WASN'T OF 11TH IT WAS OF 12TH )😭😂
Mam ne 41:40 me r ki value likha tha lekin 42:03 me man ne r ko r hi rehne diya lekin explain nhi kiya ki kiu unhone r ki r rehne d mam aisi mistake bohot karti h lekin bolti nhi h bol dena chahiye ki unse galti ho gayi kiu ki kuch students ko pareshani v hi sakta h
bhai toh unka kaam theory samjhaana hai...questions toh tujhe hi solve karne hain na....agar tereko pata hai ki galti ki hai unhone, toh tu samajh ja....1 and a half hours padhaaya maam ne, ye nhi dikh rha ki kitna achcha padhaaya hai, bas galti mil jaaye.
13:47 The vector form is wrong And as you yourself mentioned in 22:41, you could have done the same simple thing here, which otherwise, wouldn't have led to a mistake.
While explaining on 2D by mistake vectors value of OB & OA are interchanged and result came out asnegative instead of + ive.please edit to correct that within this video on 3D
Plane passing through intersection of 2 planes: (a1x + b1y + c1z - d1) + ¥(a2x + b2y + c2z - d2) = 0 You said d1 and d2 are distance from the origin. Yeh constant nhi hoga?1:28:05
When you see the equation x = x1 + (a x lambda), you must recollect the equation v = u + (a x t) you learnt in Class IX Physics. These two equations are essentially the same. In both equations, the quantity on the LHS = the previous value of the quantity + (rate of change of that quantity x a scalar). If you learn this way, subjects become a lot easier and interesting.
mam !, some topics are missing ,like; angle between two lines ,angle between two planes ,distance of a point from a plane ,angle between a line and a plane etc .no doubt that my concepts got crystall cleared but these missing topics are much important for ncert exams ,so please make another video on these concepts .that will be your most kindness .thank you!
Mam lecture was best but there were minor mistakes at 13:52 where we need to operate OB-OA you mistakely operated OA-OB and in taking the values of x1,y1 and z1 at 45:01 question,u took values of x,y and z from cartesian equation but we need value of x1,y1 and z1, your answer came right but values wrong how i dont know
Maam you are really a god of maths i learned maths in a very simple way by describing your animated video Thankuu maam ~♥~ All the best guys for your exams :)
Mam said ki their is the single line passes through 2 points bT she should say ki "their is a single straight line passes through 2 points" No big deal bT A small 🤏 correction thank you mam🙏🙏🙏
No faltu baate , no time pass only quality education with minimum time and all concepts clear.... Thanks a lot mam🙏🏻🙏🏻
Yup well said
and free also 🙂
That's why I prefer this channel over others
I agree with everything but there is no such thing as min time, if you spend more time like 9 hrs lecture you will ofc get more education
@@pranjalkumar8721 what he means is other teachers say many faltu jokes , faltu baatein inbetween. And still cannot reach anything more than her
Timestamps:
0:00 Introduction
0:43 3-Dimensional Geometry
2:57 Coordinate Planes in 3- Dimensional Space
4:34 Represent a POINT in Cartesian and Vector form
6:25 Represent a 2D LINE in Cartesian & Vector form
11:17 Represent a 3D LINE in Cartesian & Vector form
14:07 Direction Cosines of a Line
15:40 Relation between direction cosines of a line
19:26 Direction Ratios of a Line
22:05 Direction ratios & cosines of line passing through 2 points
27:12 Problem 1.
31:47 Equation of a Line in Space
33:45 Line through a given point & parallel to a given vector
39:20 Example 1.
42:37 Example 2.
45:33 Equation of a line passing through two given points
47:44 Example 1.
51:09 Skew Lines
54:10 Shortest Distance between Two Skew lines (Vector Form)
55:40 Shortest Distance between Two Skew lines (Cartesian form)
57:35 Distance between parallel lines
58:37 Plane
1:00:10 Equation of a plane in normal form : Vector
1:01:25 Equation of a plane in normal form : Cartesian
1:02:18 Example 1.
1:04:31 Example 2.
1:06:36 Plane perpendicular to a vector & passing through a point
1:10:00 Example 1.
1:13:36 Plane passing through 3 non-collinear points
1:17:28 Example 1.
1:23:16 Intercept form of the equation of a plane
1:23:52 Example 1.
1:25:37 Plane passing through intersection of 2 planes
1:28:07 Example 1.
1:31:35 Coplanarity of Two Lines
😊
Thanks
Sukriya
Mam ne angle between the two lines to explain hi ni kiya .............😵💫☹
@@pyarishaikh6181 Ma'am ne woh, Vector algebra ke oneshot mei explain kiya tha
Great Lecture maam, Thank you for this. Additionally, At 13:52 ĀB vector will be = 5î + 2j + 3k and At 45:01 it would be Lambda(b) + a vector so we would add it. Finally the answer will be (3 lambda+5) i cap + (7lambda - 4) j cap + (2 lambda +6) k cap. Posted so that no-one makes any mistake.
Agree!
smartie 🤌🏻
Thank you so much buddy! I got confused for awhile 😭🙏🏻
At 13:52 it'll be 5icap + 2jcap + 4kcap
yaa , i had posted d same too
For Boards 2022-23, watch only till 58:37,
Hope it helps...
are the other parts deleted?
@@SidPil yes
Yes plane is deleted
@@chetnabakshi1639 thanks
Those who are preparing for CBSE board 2023-2024
these are the deleted topics:-
Coplanar lines
Cartesian and vector
Equation of a plane.
Angle between (i) two lines(apparently there's confusion about this topic), (ii) two planes, (iii) a line and a plane.
Distance of a point from a plane
Thanks ma'am it was an amazing lecture ❤(completed one day before preboards 👀)
Thanks bro much appreciated
@@garvitpant6763 yup welcome ❤
thanks! all the best for your exams!!
@@angelinenettar8974 ❤
Yes
13:52
Ma'am you actually changed the value of ŌB vector and ŌA vector.
Therefore, ĀB will be = 5î + 2j + 3k 😅
Yeah 😂
Terminal --initial👍 u r right
Yes
And isn't the answer here 45:30 also wrong?
@@athulyapramod7776 yes it is! There would be plus sign between b and a
For the students having exam tomorrow, plane is not in syllabus, mt padhna😂
Thanks buddy😅 I was looking for this comment.
I read this after watching the entire video😢😭
@basic2brilliance392 check it for your syllabus, it was for 2024😂
For 2024-25 also plane is not mentioned in syllabus
Thanks 🙏
At 45:07 we have to add a vector but you have subtracted ma'am
45:32 MISS, MISTAKE IN SIGN WHILE changing the equality. it becomes r= a + /\b.
focus on concept not on calculation or sign mistake
@@Koshal-yt6us ig u wanna loose marks in numericals . Gr8 👍. I agree with you Concept is most important and the way ma'am teaches is awesome 💯😎. But the wrong calculation also takes our marks in exams ryt,? 😄😇 Just think bro 💥💥
0:00 Introduction
0:43 3-Dimensional Geometry
2:57 Coordinate Planes in 3- Dimensional Space
4:34 Represent a POINT in Cartesian and Vector form
6:25 Represent a 2D LINE in Cartesian & Vector form
11:17 Represent a 3D LINE in Cartesian & Vector form
14:07 Direction Cosines of a Line
15:40 Relation between direction cosines of a line
19:26 Direction Ratios of a Line
22:05 Direction ratios & cosines of line passing through 2 points
27:12 Problem 1.
31:47 Equation of a Line in Space
33:45 Line through a given point & parallel to a given vector
39:20 Example 1.
42:37 Example 2.
45:33 Equation of a line passing through two given points
47:44 Example 1.
51:09 Skew Lines
54:10 Shortest Distance between Two Skew lines (Vector Form)
55:40 Shortest Distance between Two Skew lines (Cartesian form)
57:35 Distance between parallel lines
58:37 Plane
1:00:10 Equation of a plane in normal form : Vector
1:01:25 Equation of a plane in normal form : Cartesian
1:02:18 Example 1.
1:04:31 Example 2.
1:06:36 Plane perpendicular to a vector & passing through a point
1:10:00 Example 1.
1:13:36 Plane passing through 3 non-collinear points
1:17:28 Example 1.
1:23:16 Intercept form of the equation of a plane
1:23:52 Example 1.
1:25:37 Plane passing through intersection of 2 planes
1:28:07 Example 1.
1:31:35 Coplanarity of Two Lines
This is the most needed video for maths students
Thank you so much ma'am 🙏
jldi jldi pdh leta hu guys prso se exam hai
pichli baar 18 no. aay the
iss baar fir se na aa jay
Kon se class me ho
45:20 vector form ke sign me mistake hai
Finally.. mil hi gya
'Koi' nhi ye comment 😂
Mam im preparing for tgt Exams And your videos are really helpful , THANKYOU FOR YOUR EFFORTS
45:01 is correct guys, I believe she wrote x1= 5 because according to the formula, “x-x1/a” the value “x-5” will only be possible when the value of x1=5
(When x1 = 5, and a= 3
=>x-5/3 will be the ans)
ALL THE BEST TO All 12thies FROM UR UPCOMING BOARDS , currently I'm in 11th . ( AFTER I FINISHED THIS CHAPTER WITH CLEAR CONCEPT I REALISE IT WASN'T OF 11TH IT WAS OF 12TH )😭😂
Wah..
You're a very smart boy indeed.
You r brilliant
jee topper
@@atherwashridhar8539 a girl didn't need to write that she is a girl .
45:23 - miss answer will be (3lamda+5)i cap + (7 lambda-4)j cap+(2lambda+6) k cap
13:27
Little wrong
Ans will be 5i +2j + 4k
Correct 💯
13:01
Mam app ne value galat likh liye OB and OA vector ka
Ha adal badal gaye hai
@@manishdv1331 yeah got me confused
should be corrected.
No
45:33
Teacher I think there is mistake of signs in a vector
Ya u are right
Ha Bhai sudhar le apne se..... Mam si bhi galti hoti hai
Yes bro I also noticed she did mistake but it's ok She is also a human. But She is a fantastic Teacher
Meine aj tak koi aisa teacher nahi dekha joh physics chemistry maths bio sab padha deta ho mam ap best teacher ho
Still watching it, all the best sabhi ko and wish me luck tooo guys🤧
Best of luck brother
How did it go?
All the best brother
sat for 3 hours continuously finally finished it thx a lot ma'am I just need a little more practice then full revision done
45:07 pee a vector ko lambda b k saath plus karnaa thaa par ma'am aapne minus kiyaa air sign badal diya... I guess...
Mam ne 41:40 me r ki value likha tha lekin 42:03 me man ne r ko r hi rehne diya lekin explain nhi kiya ki kiu unhone r ki r rehne d mam aisi mistake bohot karti h lekin bolti nhi h bol dena chahiye ki unse galti ho gayi kiu ki kuch students ko pareshani v hi sakta h
bhai toh unka kaam theory samjhaana hai...questions toh tujhe hi solve karne hain na....agar tereko pata hai ki galti ki hai unhone, toh tu samajh ja....1 and a half hours padhaaya maam ne, ye nhi dikh rha ki kitna achcha padhaaya hai, bas galti mil jaaye.
THE FRUIT OF PATIENCE IS SWEET'
Sabr Ka Fal Mitha Hota Hai
45:10 ,you have made a mistake.
You didn't change their sides
In 44:47 there's a mistake, ma'am said (λb + a) but you did (λb - a),
BTW thanks for a crystal clear explanation.
Great teacher with right attitude and motive without doing any unnecessary talks👍
13:47 The vector form is wrong
And as you yourself mentioned in 22:41, you could have done the same simple thing here, which otherwise, wouldn't have led to a mistake.
Why bro?
While explaining on 2D by mistake vectors value of OB & OA are interchanged and result came out asnegative instead of + ive.please edit to correct that within this video on 3D
few hours before exam for final revision ....... thank u mam🙃🙂🙂🙏🏻
still after 3yrs i am watching this beofre boards WOW!!!!!!!!!!!🥶🥶🥶🥶
Us bro 💀
Who all are having exam tomorrow? 🙂
Mehhh😅
😂 yt to
Me 😅
😂mere
3d Geometry Class 12 Maths | NCERT Chapter 11 | CBSE JEE | One Shot |हिंदी में
at 45:11 there is a mistake there a vector will become positive
Ma'am 44:49 ...
There should be r vector = lambda b + a vector
Ya I thought I was doing some mistake
Ya bro i also got stuck there so i wrote this..
51:09 how is that possible, I mean 0 can't be in denominator.
Mam 13:18 par mistake Hui hai
Aapne vector OB ke jagah pr OA vector ka value put kr diye hai
THANK YOU SO MUCH MA'AM... U literally saved me.
@@hazy169 pdo fir yrr
The video is too late
Plane passing through intersection of 2 planes:
(a1x + b1y + c1z - d1) + ¥(a2x + b2y + c2z - d2) = 0
You said d1 and d2 are distance from the origin. Yeh constant nhi hoga?1:28:05
13:41 mam you have by mistake taken oa vector first and substracted ...mam please rectify
When you see the equation x = x1 + (a x lambda), you must recollect the equation v = u + (a x t) you learnt in Class IX Physics. These two equations are essentially the same.
In both equations, the quantity on the LHS = the previous value of the quantity + (rate of change of that quantity x a scalar). If you learn this way, subjects become a lot easier and interesting.
mam !, some topics are missing ,like; angle between two lines ,angle between two planes ,distance of a point from a plane ,angle between a line and a plane etc .no doubt that my concepts got crystall cleared but these missing topics are much important for ncert exams ,so please make another video on these concepts .that will be your most kindness .thank you!
These topics are in deleted syllabus so these topics will not come in board this year🙂
@@thebeniwal1807 how do you know man ..? can you please share the mathematics syllabus 2022-23
@@zargerather angle between 2 line isn't delete
Else that you have mentioned is deleted
@@shidraperveen831 that is deleted.u can check !
THANK YOU SO MUCH MAM IT TAKES ME 2:30 HR TWO COMPLETE THIS VEDIO BUT IT WAS THE BEST EVER VEDIO 🙌🏻❤
Thank you so much ma'am its really helpful ✨😇
Bhi kai baje raat ko padh rahe ho kal exam dena hai ya nahi
mam at 19:30 while proving that squares of l,m,n =1 why cant we use the same trick of Vector algebra? because it also gives same orientation of line .
I have witnessed why many students says Learn o hub channel is the best learning TH-cam channel
Full is concept clyster clear thank u mam
Bhai abhi to video suru bhi nhi huyi jhoote😂😂😂😂
@@officialbsedit5033 bewakuf praani hai ye😂
@@ayushpandey268 😂
@@officialbsedit5033 areyy....nhiii video thi pehle full vo bhi without premiere playlist mein
🤣🤣
MOREOVER , 3D MEIN VECTOR REPRESENTATION IS WRONG ......................................................
Ma'am one doubt in 3d line vector form...it is 5i+2j+3k ryt??as it is to be subtracted from OB VECTOR-OA VECTOR
44:58
It suppose to be vector r = lambda b + vector a
U did r = lamba b - a
Aa gye ajj phir pura saal kaha the 😶🌫️ O_o
At 45:35 there will be + sign between ¥b and a
Thank you so much ma'am. Watching your videos even on the last day before exam really gave a positive feeling !
Concepts crystal clear!
♥
Mam apne angle between two lines nhi btaya
Mam lecture was best
but there were minor mistakes at 13:52 where we need to operate OB-OA you mistakely operated OA-OB and in taking the values of x1,y1 and z1 at 45:01 question,u took values of x,y and z from cartesian equation but we need value of x1,y1 and z1, your answer came right but values wrong how i dont know
Best of luck everyone 👍
In 1 day 21k views and 1k likes , ur teaching is really awesome mam
12:05 Line jaisa v ho , samajh mai ana zaruri hai ... Aur woh toh samajh mai aa hi raha hai ..... 😀 ❤️
Thankyou so much mam Sabse difficult topic apne Bhaut acchhe se samajaiya example ke sath 🎉🎉
Maam you are really a god of maths i learned maths in a very simple way by describing your animated video
Thankuu maam ~♥~
All the best guys for your exams :)
Ma'am you haven't explained angle between two line can you add that topic
Thank you ma'am, teachers like u found one in crores 🙏🙏🙏🙏🙏
Thanks you so much mera 1 February se exam hai aur apne concept mera clear kar diye love you mam 🥰❣️🥰❣️❣️🥰🥰🥰🥰
Where's distance of a point from plane?
Sirf ek hi formula hai uska vohi yaad karlo.
Ek cartesian form mei hai ek vector form mei
AB vector will be OB-OA vector at 13:44 , Aapne OA-OB kar diya hai
Gdpd in 13:43
Mam at 45:55 wala ques. Glt he = ke udhar + hoga
Bahut sahi padhaye ho madam jee😀
13:40 pe OB vector - OA vector karna tha ma'am
There was a mistake in represent a 3D line in vector form 13:15
Your cocept are very clear and very helpful for the students thankyou mam😊
Concepts ho gaya crystal clear mam thank you so much mam only beacuse of you I am able to understand my concept and solve problems thank you
There is a fault, represent line in 3d
Please recheck it and provide right aducation.
13:05...mam yaha pe OB-OA hai ...ta ap ne OB ki jaga OA ka value kyu likha
You didn't cover the angle wala part (like angle b/w lines & planes etc.)
Now my fear of 3d is gone... thank you ma'am
at 44:47 lambda b + a =r
but you wrote '-" minus
Your are amazing teacher
"Crystal clear". Thanku mam✨💫
No. 1 one shot video in all over youtube channel
Great lecture of 3d I never seen such a GREAT LEARNING lecture
Mam example 2 ka ans me sign galat hai...
Wo 3 @+5 , 7@ - 4 , 2@+6 hoga
Mam apke channel mein videos mein yeh video nhii dikh raha but playlist mein hai...please check karlo
thank you thank you thank you so much. I usually don't comment under any video but this one needs a huge applause.
You are my favourite teacher forever
No one asked beta
Mam at 14:07 by mistake you have interchanged the OA and OB vector..
Yes!!
Mam said ki their is the single line passes through 2 points bT she should say ki "their is a single straight line passes through 2 points" No big deal bT A small 🤏 correction thank you mam🙏🙏🙏
45:30 isnt it [3lamda+5 ]i^
Most effective way of teaching
Myself as a math teacher, Love you❤❤❤ so much from Kashmir..
38:31 how this all becomes equal to each other...???pls anyone explain....🙋🙋🙋👀
We put the values of r vector and a vector, and further equate these values with λb vector.
@@verysuscat thnks ...
Thankyou so muchh mam
what about at 28:17 shouldnt it be OA-OB
at 40:58
x1 = 1, y1 = 2, z1 = 3 ...
lamda = x - 1 / 3 = y - 2/2 = z - 3/2
not
3 - z1/2
check once if i'm wrong.
16:57 Ham (rcosα = a) ku lenge
Very nice teaching
You can do very small mistake please correct them
13:11 OB-OA not OA-OB