Question

(i) sin²θ + cos²θ =
(ii) 1 + tan²θ =
(iii) 1 + cot² θ =
(iv) Sin 2 θ = ​

Answer 1

Explanation:

(1) = 1

(2) = sec²θ

(3) = cosec² θ

(4) = 2 Sin θ cos

Answer 2

(i) sin²θ + cos²θ = 1

(ii) 1 + tan²θ = sec²θ

(iii) 1 + cot²θ = cosec²θ

(iv) Sin 2θ = 2 Sinθ cosθ

-TheUnknownScientist