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Posted by on Thursday, March 19, 2009 at 4:19am.

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!!! - , Thursday, March 19, 2009 at 1:35pm

    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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