Question

`(1- tan^2 45°)/(1+tan^2 45°)` = ______

विकल्प

• tan 90°

• 1

• sin 45°

• 0

Answer 1

`(1- tan^2 45°)/(1+tan^2 45°)` = 0

Explanation:

`(1- tan^2 45°)/(1+tan^2 45°) `

= `(1-(1)^2)/(1+(1)^2)`

= `(1-1)/(1+1)`

= `0/2`

= 0

Hence, 0 is correct.