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bubunbhatt (31)

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Olaaa!! Perrrfect answer. 3  [11 rates]

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Hi
 a simple metod For doing it;
Without using P.F.
S:rep int.
1/2 S 2z^2/(1+z^2)(1-z^2)
=1/2 S (1+z^2)-(1-z^2)/(1+z^2)(1-z^2)
Now divide and int.
It will come in Some Integrable form
It takes much less time
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