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Popular >

derivative of sqrt(x^3+2x)

Solution

derivative of

x^{3} + 2 x

Solution

\frac{3 x ^{2} + 2}{2 x ^{3} + 2 x}

Solution steps

\frac{d}{d x} (x^{3} + 2 x)

Apply the chain rule:

\frac{1}{2 x ^{3} + 2 x} \frac{d}{d x} (x^{3} + 2 x)

= \frac{1}{2 x ^{3} + 2 x} \frac{d}{d x} (x^{3} + 2 x)

\frac{d}{d x} (x^{3} + 2 x) = 3 x^{2} + 2

= \frac{1}{2 x ^{3} + 2 x} (3 x^{2} + 2)

Simplify

\frac{1}{2 x ^{3} + 2 x} (3 x^{2} + 2) : \frac{3 x ^{2} + 2}{2 x ^{3} + 2 x}

= \frac{3 x ^{2} + 2}{2 x ^{3} + 2 x}

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Frequently Asked Questions (FAQ)

What is the derivative of sqrt(x^3+2x) ?
The derivative of sqrt(x^3+2x) is (3x^2+2)/(2sqrt(x^3+2x))
What is the first derivative of sqrt(x^3+2x) ?
The first derivative of sqrt(x^3+2x) is (3x^2+2)/(2sqrt(x^3+2x))