1.

Solve: xsinx

Answer»

Let y = xsinx, taking logm both sides 

log y = sinx log x, Diff w.r.t x 

\(\frac{1}{y}.\frac{dy}{dx}\)= sin x .\(\frac{1}{x}\) + log x . cos x 

\(\frac{dy}{dx}\) = y[\(\frac{sinx}{x}\) + log x . cos x]



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