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Evaluate the following integrals :`int(1-cos2x)/(1+cos2x)dx`A. `tanx+x+C`B. `tanx-x+C`C. `-tanx+x+C`D. none of these |
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Answer» Correct Answer - B `I=int(2sin^(2)x)/(2cos^(2)x)dx=inttan^(2)xdx=int(sec^(2)x-1)dx=tanx-x+C`. |
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