First slide

Extreme values and Periodicity of Trigonometric functions

Question

If g(x) is a periodic function then

Moderate

A

fog(x) will always be periodic
B

The period of g(x) is same as gof(x)
C

gof(x) will always be periodic
D

fog(x) need not be periodic

Solution

If g(x) is periodic function then
fog(x) will always be periodic

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