Question

tan 2A = 1 then A = ………

A) 45.5 

B) 60.5 

C) 22.5 

D) 30.5

Answer 1

Correct option is: C) 22.5

We have tan 2 A = 1 = tan \(45^\circ\)

= 2A = \(45^\circ\)

= A = \(\frac {45^\circ}{2} = (22.5)^\circ\)

Answer 2

Correct option is: C) 22.5