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Question

If y=[x2+1x+1], then dydx=?


  1. none of these


Solution

The correct option is A


Here   u(x)=x2+2x,v(x)=3x4Using quotient rule,dydx=(3x4)d(x2+2x)dx(x2+2x)d(3x4)dx(3x4)2=(3x4)(2x+2)(x2+2x)3(3x4)2=3x28x8(3x4)2

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