Question

find the general values of θ if cos θ = 1/√2

Answer 1

Answer:

θ = 2 n π ± π / 4 n ∈ Z

Step-by-step explanation:

Given :

cos θ = 1 / √ 2

= > cos θ = cos π / 4

We know :

If :

cos θ = cos α

= > θ = 2 n π ± α   , n ∈ Z

Putting value here we get :

= > θ = 2 n π ± π / 4 n ∈ Z

Hence we get required answer!