CBSE Class 10 Maths Introduction to Trigonometric Identities

Q.

1 + tan2θ = sec2θ is not true for which of the following θ? 



Q.

1 + cot2θ = cosec2θ is not true for which of the following θ? 



Q.

How many trigonometric identities are there? 



Intro to Trigonometric identities.