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Differentiate y = (sin x)/x for x not equal to 0.
A(sin x - x cos x)/x^2
B(cos x - sin x)/x^2
C(x cos x + sin x)/x^2
D(x cos x - sin x)/x^2
Answer & Solution
Correct answer: D. (x cos x - sin x)/x^2
Quotient rule: (x cos x - sin x · 1)/x^2.
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