MonotonicityHard
Question
The function f(x) = 
is -
is -Options
A.increasing on (0, ∞)
B.decreasing on (0, ∞)
C.increasing on (0, π/e), decreasing on ( π/e, ∞)
D.decreasing on (0, π/e), increasing on (π/e, ∞ )
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