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Question

if y=xx-2sinx, then find dy/dx

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Solution

y = xx - 2 sin xLet y = u - v dydx = dudx - dvdx ......1 Now, u = xx log u = log xx log u = x log x 1u dudx = x × 1x + log x dudx = u 1 + log x dudx = x2 1 + log x Now, v = 2 sin x dvdx = 2 cos xNow, from 1, we get,dydx = x2 1 + log x - 2 cos x

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