Question

Please, Two of the solutions of cos(x/2) = -(sqrt(2)/2)

Answer 1

`x = (3\pi)/(2) + 4k\pi`

`x = (5\pi)/(2) + 4k\pi`

Step-by-step explanation

Answer 2

270 and 450

Explanation:

Honestly I guessed and got it right :/