Question

If ſ3 tan o = 1 then evaluate cos²o-sino​

Answer 1

Answer:

√3 tanθ=1

⇒tanθ= 1/√3

⇒θ=60°

∴sin 2θ−cos 2 θ=sin 2 θ−cos 2 θ

= ( √3/2) 2 - ( 1/2)2

= 3/4 - 1/4

= 1/2

Hence, the answer is 0.5.

Answer 2

Answer:

1/4

Explanation:

See the pics attached

Hope it helps you