Maxima and MinimaMedium
Question
The function 
has no maxima or minima if -
has no maxima or minima if -Options
A.b - a = nπ, n ∈ I
B.b - a = (2n +1)π n ∈ I
C.b - a = 2n π, n ∈ I
D.none of these.
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