in the last vedio the question is x=sec tetha tan tetha and y=sec^3=sec^3 teha
whil solving this sir take 3sec^3 while it have to be 3sec^2 simply why sir take 3sec^3  any other formula and if yes solve this problem with full detaile and give some examples also and why we solv all these problems means its use

Asked by saggugurupal | 2nd Aug, 2016, 07:53: PM

Expert Answer:

Since you said the last video, we referred to the following link. 
 
http://www.topperlearning.com/study/cbse/class-12/mathematics/video-lessons/continuity-and-differentiability/logarithmic-functions/1500/b101c4s3e5ch109t581
 
However, the question could not be found. It would be better if you would specify the link too so that we could clear your doubt.

Answered by Rebecca Fernandes | 4th Aug, 2016, 03:03: PM