calculate integral value of( xcosx dx).
Last Activity: 12 Years ago
answer :- x sinx + cosx + C
your answEr is correct but how it is?please explain me
∫x.cosxdx=> x∫cosxdx-∫[d(x)/dx(∫cosxdx)]dx
=> xsinx-∫(sinx)dx
=> xsinx+cosx+c
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