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

Answer:
[tex]x = \frac{3\pi}{2} + 4k\pi[/tex]
[tex]x = \frac{5\pi}{2} + 4k\pi[/tex]
Step-by-step explanation
Answer:
270 and 450
Step-by-step explanation:
Honestly I guessed and got it right :/