Differentiation of exponential and logarithmic functions — Question 61
Original QCE Vault practice · 1 mark
Q61 · Practice questionTechnology-freeSimple familiar1 mark
QUESTION 61
If g(x)=ln(ex+1), then g′(x) is (A)ex+11 (B)exln(ex+1) (C)ex+1ex (D)exex+1 WORKED SOLUTION
Answer C
1 markWorked solution
By the chain rule, g′(x)=ex/(ex+1). Selects the correct option.
[1 mark]Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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