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Q.No9: The value of fLog x dx is |
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Answer» ∫ logx dx = ∫ logx *1 dx , Now using formula of integration by parts taking logx = 1st function and 1 as second function ,we get, ∫ logx *1 dx =logx* ∫1 dx - ∫ { d/dx (logx) ∫ 1dx}dx =x logx +c1 - ∫{ (1/x)*x }dx = xlogx +c1 - x +c2 = xlogx -x + C (c1,c2 and C are integration constant) Like my answer if you find it useful! |
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