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intxtan^2xdx |
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Answer» SOLUTION :`intxtan^2xdx=intx(sec^2x-1)DX` =`intxsec^2xdx-intxdx` =`x.tanx-int1.tanxdx-1/2x^2` [x=1st `sec^2x=2nd`] =`xtanx+Inabs(COSX)-x^2/2+C` |
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