SOLUTION: Simplify cos(3pi/2-x)+cos(pi/2+x)

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Question 1080572: Simplify cos(3pi/2-x)+cos(pi/2+x)
Answer by rapture(86) About Me  (Show Source):
You can put this solution on YOUR website!
cos(π/2) = 0

Cos(3π/2) = 0

cos[(π/2) - x] + cos[(3π/2) + x]

cos(π/2) - cos x + cos(3pi/2) + cos x

0 - cos x + 0 + cos x

- cos x + cos x

Answer: 0