MonotonicityMedium
Question
Function f(x) = x - log x is monotonic decreasing when-
Options
A.x ∈ (0, 1)
B.x ∈ (-1 , 1)
C.x ∈ (1, ∞)
D.None of these
Solution
f(x) = x - log x monotonic decreasing
f(x) < 0 1-
< 0
< 0 
f(x) < 0 1-
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