Question

The value of `(1/2 tan^2 45° - cos^2 60°)` is ______.

विकल्प

• 0

• `-1/2`

• `1/4`

• `-1/4`

Answer 1

The value of `(1/2 tan^2 45° - cos^2 60°)` is `bbunderline(1/4)`.

Explanation:

`1/2 tan^2 45° - cos^2 60°`

= `1/2 (1)^2 - (1/2)^2   ...(tan 45° = 1 cos 60° = 1/2)`

= `1/2 - 1/4`

= `(2 - 1)/4`

= `1/4`