allery$\dfrac{d}{dx}(x^n)$ equals:
A$x^{n-1}$
B$n x^n$
C$n x^{n-1}$
D$(n-1) x^n$
Answer & Solution
Correct answer: C. $n x^{n-1}$
Power rule: $\frac{d}{dx}(x^n) = n x^{n-1}$ for any real $n$.
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