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

Given: To find: 9 tan2 θ + 9∵ ∴ Also, we know that 1 + tan2 θ = sec2 θ

Q18 of 153 Page 7

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

Given:

To find: 9 tan² θ + 9

∵

∴

Also, we know that 1 + tan² θ = sec² θ

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

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

If sec²θ (1 + sin θ) (1 − sin θ) = k, then find the value of k.

If cosec²θ (1 + cos θ) (1 − cos θ) = λ, then find the value of λ.