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Math Help - Find the value of A :

  1. #1
    Member great_math's Avatar
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    Find the value of A :

    If \int \frac{1}{1+\sin x}\ dx= \tan\left(\frac{x}{2}+a\right) find the value of a.
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by great_math View Post
    If \int \frac{1}{1+\sin x}\ dx= \tan\left(\frac{x}{2}+a\right) find the value of a.
    were there limits on the integral?

    if not, just integrate the left hand side and see where it takes you.

    hint: multiply the integral by \frac {1 - \sin x}{1 - \sin x} and simplify before integrating
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