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OpenStudy (anonymous):
evaluate the integral (x/(1+x^4))dx
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myininaya (myininaya):
OpenStudy (anonymous):
im confused ? ! :D
myininaya (myininaya):
i did a trigonometric substitution
myininaya (myininaya):
it we let x^2=tan(theta) then we can write the bottom as sec^2(theta)
OpenStudy (anonymous):
gotttt it tnx alot
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