Answer the following questions related to trigonometric identities.

MATHEMATICS · Multi-part · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

Answer the following questions related to trigonometric identities. (i) State the fundamental trigonometric identity involving

\sin\theta

and

\cos\theta

. (ii) Derive the identity

1+\tan^2\theta = \sec^2\theta

. (iii) Derive the identity

1+\cot^2\theta = \csc^2\theta