Find when .
Answer and explanation
Correct answer: C.
- Step 1: Quotient rule with , : , .
- Step 2: .
- Step 3: Simplify: .
Answer
(1 - log_e x)/x^2.
Why not the others: The first has the numerator in the wrong order; the second adds instead of subtracts; the last drops the logarithm term.
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