Question

(1 – cos² A) is equal to ______.

विकल्प

• sin² A

• tan² A

• 1 – sin² A

• sec² A

Answer 1

(1 – cos² A) is equal to sin² A.

Explanation:

We know that,

sin² A + cos² A = 1

`\implies` 1 – cos² A = sin² A

Therefore, 

1 – cos² A is equal to sin² A