Further MathematicsDifferentiationWAEC
Differentiate y = 5x³ − 4x + 7/x with respect to x.
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Answer: C. 15x² − 4 − 7/x²
7/x = 7x⁻¹, whose derivative is −7x⁻² = −7/x².
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.