had this exact problem, only difference was that sin was being subtracted from 1 rather than being added. Thank you so much!! Your videos always come in clutch.
THANK YOU!!! I am taking an online class right now. (Duh, all classes right now are online.) But in all seriousness, I had this exact same problem, and I'd gone through trying to solve it on my own for like an hour, had left and come back to it, and was on the penultimate step. When I watched this video, I realized about halfway through the video, before it even got to that step where I'd been stuck, what I hadn't thought of before (which was factoring the two out and being able to eliminate the (1+sinx). This video was an answer to my prayers, quite literally.
Hi Prof.Your videos are really helping me a great deal.Thank you. How do you go about this problem; "Find the rectangular equation of the curve whose parametric equations are X=a cos t and Y=b cos t for from -ve infinity to +ve infinity given that a is not equal to b .Name two possible curves that can be represented by the given equation." Brian.
Yay! I’m very new to trig identities but I decided to pause the video at the start and try this one for myself. I feel so happy that I was able to do it all on my own!! :)
I have the most trouble with factoring returning to college after taking around 2 Off years benefited me 1 bit. I forgot a lot of core algebra thank you
I just wanna ask if,, is there no rule or anything when applying operation? Like i can multiply or add 1+sin0 in every way i want to get the answer im looking for?
You did a good job on this video! It might be helpful to explicitly write a chain of equalities from the left-hand side to the right-hand side instead of writing only expressions one after another.
pre calculus is so hard😭and our teacher in their makes our life in studies more complicated.for she don’t know how to discuss well😭😭she’s an engineer though not a teacher😭😭😭skl
which side should you pick to verify the identity? - th-cam.com/video/efYHuDfSkBY/w-d-xo.html
7 years from now and he still saving everybody's grades. You a legend. Keep it up
It makes 10 years now
11 years now lol
11 years 😭
had this exact problem, only difference was that sin was being subtracted from 1 rather than being added. Thank you so much!! Your videos always come in clutch.
my trig teacher sucks, half of the class has dropped and the other half is failing. i think i’m the only one that will pass the exam tmr thanks to you
THANK YOU!!! I am taking an online class right now. (Duh, all classes right now are online.) But in all seriousness, I had this exact same problem, and I'd gone through trying to solve it on my own for like an hour, had left and come back to it, and was on the penultimate step. When I watched this video, I realized about halfway through the video, before it even got to that step where I'd been stuck, what I hadn't thought of before (which was factoring the two out and being able to eliminate the (1+sinx). This video was an answer to my prayers, quite literally.
Lol why did i get so excited when he got the answer
haha not sure
I would like to learn about this topic from the beginning, do you have a playlist on solving for identities.
I like how you get straight into the solving
but why at 4:58 you say 'and yes it is' so sassy hahah i love it thank you so much
Hi Prof.Your videos are really helping me a great deal.Thank you.
How do you go about this problem;
"Find the rectangular equation of the curve whose parametric equations are X=a cos t and Y=b cos t for from -ve infinity to +ve infinity given that a is not equal to b .Name two possible curves that can be represented by the given equation."
Brian.
Yay! I’m very new to trig identities but I decided to pause the video at the start and try this one for myself. I feel so happy that I was able to do it all on my own!! :)
what he explained in 5 minutes and 11 seconds is moreeeee than what my professor did in 3 lectures 😅
All respect and thanks
ohhhhh my god you helped me so much, keep up these videos. You are the best !!!!!!
you are very welcome!
Oh my goodness this exact question was a question on my take home test. I was starting at it for hours struggling, this helped so much!! Thank you!!
I have the most trouble with factoring returning to college after taking around 2 Off years benefited me 1 bit. I forgot a lot of core algebra thank you
Love steps 7 and 8. Need to make that into a poster for my classroom!
bro was saving my life while i was in like 4th grade and i didn’t even know it yet
With the second step, why is it that your binomial is not 1 + sin^2 (theta) but is 1^2 + 2 sin(theta) + sin^2 (theta)?
you foil it because its 2 binomials multiplying
@@theworlddiscoverer7316 Damn that took years. Thank you
Thanks a bunch for helping me for years.
Viva sir ...your ideas are master class ....am an engineering student and am in great love with your mathematics
So happy to be able to help!!
Why did you factor out the 2?
I just wanna ask if,, is there no rule or anything when applying operation? Like i can multiply or add 1+sin0 in every way i want to get the answer im looking for?
Thx for helping me understand proofs!
Slowly making more sense! Thanks!
you deserve a raise!
Really helped thanks 👍(I can ace these problems
You did a good job on this video! It might be helpful to explicitly write a chain of equalities from the left-hand side to the right-hand side instead of writing only expressions one after another.
thank you brian, you a real one
Great explanation, Brian! Nice work! Keep it up!
THANKK YOU OMG i was stuck on a very similar problem this helped so much
How does the very first part (1+sin theta ) multiplied by 1 become 1 +2sin theta
I should had inserted parenthesis I multiplied (1+sin(theta)) times(1+sin(theta))
THANK YOU SO MUCH FOR THIS😭❤️
if we have fraction to subtract do we still make the denominators the same?
shouldn't ( 1+ sin THeta) * ( 1+ sin theta) = 1+sin^2 theta ?
no, need to follow distributive property
yeah, its the (a+b)^2 property
Thank you so much, I was having trouble with this and now I get it
I got lost after 0:01
He’s just so good at what he does
wait what happened to the one I thought it would be 2+sin x +1???
I was wondering the same thing
Very easy. My high school memory came back!
This is probably the quickest way to prove 2/cos and 2sec at the same time
that was gr8 sir thank u very much may good guide u and bless u ameen'
I was searching for some strategy to solve,Great found one.
This helped so much! Thank you!
Hello
Please what is the integration of
1/1-x^2
Use u substitution
best way to practice and understand this concept
cheers!
I've been up all night, watching all your trig identities video for fun... I need help
Thank you! You have the clearest explanations
happy to help
Bro you are a star
Truly a legend
What happensed in the last part? Huhu help me here I'm new for that thing. It's hard to left behind
can you detail what you are referring to or the exact time?
Nothing. Thanks for the video it help me a lot Mr.
This is really helpful.
awesome happy to help
Awesome thank you Prof!
Well done boss
thanks . really helped.
you are very welcome!
superb explanation,thanks man
you are very welcome!
THANK U SO MUCH
Really just such a beast
Thank u
Sir help me! ... Prove that sin(x-150)+sin(x+30)=0...
Sin(x-150) + sin(x+30)
=Sin(x-180+30) + sin(x+30)
=Sin(-(180-x-30) + sin(x+30)
=-sin(180-(x+30)) + sin(x+30)
=-sin(x+30) + sin(x+30)
=0
thank u so much
you are very welcome Candy!!
u should have taken LCM of cos theta and 1+sin theta in the beginning
ur trick is nice of multiplying numerator and denominator with suitable terms to get the clearest identity
thank you
You take a really lengthy approach just multiply bot sides with the conjugate on 2nd term and then it's done.
Yeah its called "teaching".
-_-
Bro every time I see a math problem and see it equal to the left side I'm like this some type of witch craft
Wish I had his email to ask him for help on one of my questions I have
I love you king
Tq
pre calculus is so hard😭and our teacher in their makes our life in studies more complicated.for she don’t know how to discuss well😭😭she’s an engineer though not a teacher😭😭😭skl
So sorry to hear, keep working hard
✅✅✅👍
Sir you look like Randy Orton
No. THANK YOU!
Got exam few hours later😢
Who actually uses this in a real job aside from a math teacher?
Engineers use it for constructing buildings, bridges, houses. Haven't u herd about prblms based on finding the height of a tower or a building?
it's not about using it on a daily basis. It's about knowing such thing exist when u do need it.
soo fucking helpful
😅😄😇
cheers!
Ash and Pika thanky
Theres literally 0 logic behind this shit 😂
it takes time and practice
2022
nice vedio thx for your explanation sir thxxxxxxxxxxxxxxxxx a lllllllllllllllllllllllllllllooooooooooooooooooooottttttttttttttttttttttttttttt
you are very welcome!
damn