Question

Prove q. no. 4
Immediately

You need to prove the question.

Answer 1

L. H. S
=sec(90-theta).cosec(90-theta)
=cosec theta.sec theta
=1/sin theta * 1/cos theta
=cot theta * 1/cos theta * 1/cos theta
=cot theta * sec^2 theta...= R. H. S
hence proved..
hope it will be helpful for you ✌

Answer 2

first u need convert the ratios into the form sin and cos
the solve it