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`int cot theta^(3) cosec^(2) theta d theta` का मान ज्ञात कीजिए। |
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Answer» माना `cot theta = t rArr - coses^(2) theta d theta dt` `therefore int cot^(3) theta cosec^(2) theta d theta = - int t^(3)dt = - (t^(4))/(4) - - (cot^(4) theta)/(4)` |
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