If the argument 'ωt' of the periodic function f(t) = A cos(ωt + φ) is increased by integral multiple of ______ radians, the value of the function remainsthe same.

If the argument 'ωt' of the periodic function f(t) = A cos(ωt + φ)

1.	If the argument 'ωt' of the periodic function f(t) = A cos(ωt + φ) is increased by integral multiple of ______ radians, the value of the function remainsthe same.
A.	π
B.	2φ
C.	φ
D.	2π
Answer» E.

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If the argument 'ωt' of the periodic function f(t) = A cos(ωt + φ) is increased by integral multiple of ______ radians, the value of the function remainsthe same.

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