Consider the function y = x.sin(x); differentiate the function with respect to x

Using the product rule :u = x, so du/dx = 1
v = sin(x), so dv/dx = cos(x)
Therefore dy/dx = v(du/dx) + u(dv/dx) So dy/dx = sin(x) + x.cos(x)

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Answered by Ben R. Maths tutor

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