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$y = 4 + 5 x + 7 x^{3} . Find \frac{d y}{d x}$

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detailed solution

Correct option is B

y=4+5x+7x3dydx=0+5(1)+73x2 ∵dcdx=0,dxdx=1,dxndx=nxn−121x2+5

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y=4+5x+7x3. Find dydx

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$y = 4 + 5 x + 7 x^{3} . Find \frac{d y}{d x}$