Q16 of 153 Page 7

If , find the value of tan A + cot A.

Given:

To find: tan A + cot A

∵ sin² A + cos² A = 1

⇒ sin² A = 1 – cos² A

Now, as

And

What is the value of ?

What is the value of (1 + tan²θ) (1 − sin θ) (1 + sin θ)?

If , then find the value of 2 cot²θ + 2.

If , then find the value of 9 tan²θ + 9.