SOLUTION: evaluate integral -4 to 4 x^3 cos(e^x+1/e^x-1)

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Question 1068821: evaluate integral -4 to 4 x^3 cos(e^x+1/e^x-1)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You must recognize that the function is odd.
Once you do that, you know that integrating over a symmetric interval will yield an integral of 0.
int%28x%5E3+cos%28%28e%5Ex%2B1%29%2F%28e%5Ex-1%29%29+%2Cdx%2Cx=-4%2C4%29=0

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