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\(\int\frac{cos2x}{(sinx+cosx)^2}\) dx =∫ cos2x/(sinx + cosx)2 dx =(A) \(\frac{-1}{sinx + cosx}\) + K(B) log |sinx + cosx| + K(C) log |sinx − cosx| + K(D) 2log|sinx| + K |
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Answer» Option : (B) log |sinx + cosx| + K |
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