Advanced · Algebra & functions

Derivative rules practice

Derivative rules is an advanced math skill: apply the power, product, quotient, and chain rules to differentiate functions. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 27 derivative rules problems our math games drill.

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Sample questions

Try 8 for free

Question 1easy

If f(x)=x3f(x) = x^{3}, what is f(2)f'(2)?

f(x)=3x2f'(x) = 3x^{2}, so f(2)=322=12f'(2) = 3 \cdot 2^{2} = 12.

Question 2easy

Find ddx[x2sinx]\dfrac{d}{dx}\left[x^2 \sin x\right].

Product rule: (fg)=fg+fg=2xsinx+x2cosx(fg)' = f'g + fg' = 2x\sin x + x^2\cos x.

Question 3easy

If f(x)=2x2f(x) = 2x^{2}, what is f(3)f'(3)?

f(x)=4x1f'(x) = 4x^{1}, so f(3)=431=12f'(3) = 4 \cdot 3^{1} = 12.

Question 4easy

If f(x)=x2f(x) = x^{2}, what is f(5)f'(5)?

f(x)=2x1f'(x) = 2x^{1}, so f(5)=251=10f'(5) = 2 \cdot 5^{1} = 10.

Question 5easy

If f(x)=x4f(x) = x^{4}, what is f(1)f'(1)?

f(x)=4x3f'(x) = 4x^{3}, so f(1)=413=4f'(1) = 4 \cdot 1^{3} = 4.

Question 6easy

If f(x)=3x2f(x) = 3x^{2}, what is f(2)f'(2)?

f(x)=6x1f'(x) = 6x^{1}, so f(2)=621=12f'(2) = 6 \cdot 2^{1} = 12.

Question 7easy

If f(x)=x3f(x) = x^{3}, what is f(1)f'(1)?

f(x)=3x2f'(x) = 3x^{2}, so f(1)=312=3f'(1) = 3 \cdot 1^{2} = 3.

Question 8easy

If f(x)=2x3f(x) = 2x^{3}, what is f(1)f'(1)?

f(x)=6x2f'(x) = 6x^{2}, so f(1)=612=6f'(1) = 6 \cdot 1^{2} = 6.

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