Question

5 cot π/2 − 2 sin π/4

Answer 1

We know π/ 2 = 90° and π/ 4 = 45°

Explanation:

so 5cot 90° - 2 sin 45°

5 * 0 - 2 * 1/ √2

- 2 * 1 /√2

- √2 * √2 / √2

-√2