Thank you , your video is very helpful. harder exercises will need some practice, but your video helps me understand the topic more than a superficial level and than just applying formulas. I can do most exercises right away after understanding from your video.
At 7:50 everyone emphasizes that we need (n-1) lots of the difference to get to the total sum of the nth term. Is the significance of "-1" in (n-1) because the first term in the AP (namely, a) has no common difference attached to it?
If I understood you correctly, yes. I think its better to think about it as the first term " a " as HAVING a common difference " d " attached to it, but that difference has a coefficient of 0. So term " a " would actually be " a + 0d ". Adding even more, you could think of it as " 1a + 0d ". When you see it this way it becomes clear that " d " has a coefficient 1 unit less than that from "a".
Australia has got d same syllabus as we have...........!!!!! Really glad to get ur lessons sir...... Lots of love from India .... Almost every topics and chapters matches with ours 11th grade's... We can even discuss our options lessons if any of d Australian student intend to .
The numbers 1, 4, 16 can be three terms (not necessarily consecutive) of no A.P. only on G.P. infinite number o A.P.'s infinite number of G.P.'s.??????
What an energetic legend
Thank you , your video is very helpful. harder exercises will need some practice, but your video helps me understand the topic more than a superficial level and than just applying formulas. I can do most exercises right away after understanding from your video.
Lmao “circle”, laughing so hard
I wish you were my teacher...
Me too! thanks to youtube we can have a taste at least
At 7:50 everyone emphasizes that we need (n-1) lots of the difference to get to the total sum of the nth term. Is the significance of "-1" in (n-1) because the first term in the AP (namely, a) has no common difference attached to it?
If I understood you correctly, yes.
I think its better to think about it as the first term " a " as HAVING a common difference " d " attached to it, but that difference has a coefficient of 0. So term " a " would actually be " a + 0d ". Adding even more, you could think of it as " 1a + 0d ". When you see it this way it becomes clear that " d " has a coefficient 1 unit less than that from "a".
Australia has got d same syllabus as we have...........!!!!!
Really glad to get ur lessons sir......
Lots of love from India ....
Almost every topics and chapters matches with ours 11th grade's...
We can even discuss our options lessons if any of d Australian student
intend to .
Rahul Dhungel hey I’m Aussie in year 11 rlly cool to see our syllabus is similar :)
What's ur future plans?????
@@rahuldhungel7546 yeah bro its pretty helpful!
Y there is no formula for other sequence???????
The numbers 1, 4, 16 can be three terms (not necessarily consecutive) of no A.P. only on G.P. infinite number o A.P.'s infinite number of G.P.'s.??????