SOLUTION: 2cos(x)+sqrt(2)=0

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Question 242664: 2cos(x)+sqrt(2)=0
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
2cos(x)+sqrt(2)=0
cos(x) = sqrt(2)/2
x = pi/4, 3pi/4 (45 and 135 degrees)
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General solution:
x = pi/4 + 2n*pi, n = 0,1,2,...
x = 3pi/4 + 2n*pi, n = 0,1,2,...