I Tried so many times but I cannot find the answer>>>> First I use the law of integration I write this like this Then I cannot do anything.>>>>
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What I prefer to do is change everything to sine and cosine. sec(x)= 1/cos(x).
Multiply both numerator and denominator by cos(x) to get
Now let u= sin(x), du= cos(x)dx and that becomes
which can be done by "partial fractions".
Use integration by parts.
Last edited by ReneG; Jul 5th 2013 at 11:09 AM.
I have a great thank for both of you.
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