Question

If sin 30° = x and cos 60° = y, then x² + y² is

विकल्प

• `1/2`

• 0

• sin 90°

• cos 90°

Answer 1

`1/2`

Explanation;

Hint:

sin 30° = x = `1/2`

cos 60° = y = `1/2`

x² + y² = `(1/2)^2 + (1/2)^2`

= `(1/4) + (1/4)`

= `(2/4)`

= `1/2`