# CALCULUS HELP!!!

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integrate 1/(x^2sqrt(1+x^2))

i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated

• CALCULUS HELP!!! -

Try -[sqrt(1+x^2)]/x
You will get two terms when you differentiate that. Arrange them with a common denominator and see what happens.

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