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`int (sec^(2) x)/(" cosec "^(2)x) dx`A. `tanx + x + C`B. `tanx - x + C`C. `-tanx + x + C`D. `- tanx + x + C` |
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Answer» Correct Answer - B `(sec^(2)x)/(cosec^(2)x) = (sin^(2)x)/(cos^(2)x) = tan^(2)x = (sec^(2) x - 1)`. |
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