Q. 265.0( 3 Votes )

If tan (x + y) + tan (x – y) = 1, find.

Answer :

We are given with an equation tan(x + y) + tan(x – y) = 1 , we have to find by using the given equation, so by differentiating the equation on both sides with respect to x, we get,


sec2(x + y)[1 + ] + sec2(x – y)[1 – ] = 0


[sec2(x + y) – sec2(x – y)] + sec2(x + y) + sec2(x – y) = 0



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses