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intsec^30xtanxdx |
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Answer» SOLUTION :`intsec^30xtanxdx` =`intsec^29x.secx.tanxdx` [PUT secx=t Then secx.tanxdx=dt] =`intt^29dt` =`1/30t^30+C=1/30sec^30x+C` |
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