Question

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

Answer 1

Answer:

$x = \frac{3\pi}{2} + 4k\pi$

$x = \frac{5\pi}{2} + 4k\pi$

Step-by-step explanation

Answer 2

Answer:

270 and 450

Step-by-step explanation:

Honestly I guessed and got it right :/