Question

The value of (cos 90° – sin 90°) is ______.

विकल्प

• –1

• greater than 0

• equal to the value of tan 45°

• 0

Answer 1

The value of (cos 90° – sin 90°) is –1.

Explanation:

cos 90° = 0 and sin 90° = 1

So, cos 90° – sin 90°

= 0 – 1

= –1