hint? I do know the integral of is , but the thing is causing a problem, as well as the square root.
Last edited by Jason76; Aug 31st 2014 at 05:25 AM.
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substitute ...
??? Next step?
Last edited by Jason76; Aug 31st 2014 at 01:47 PM.
If u= ln(sec(x)+ tan(x)), what is du in terms of dx? Do you know the derivatives of sec(x) and tan(x)?
Originally Posted by Jason76 ??? Next step? NO! Read Skeeter's post properly!
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