d/dx (xⁿ) = ?
An x
Bxⁿ⁺¹
Cn xⁿ⁻¹
Dxⁿ
Answer & Solution
Correct answer: C. n xⁿ⁻¹
Power rule: d/dx (xⁿ) = n × xⁿ⁻¹ for any real n. Foundation of differentiation. d/dx(x⁵) = 5x⁴, d/dx(1/x) = d/dx(x⁻¹) = -x⁻² = -1/x².
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