Statement I: Sine and cosine functions are periodic functionsStatement II: Sinusoidal functions repeat its values after a definite interval of time.

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If both statement I and statement II are true and statement II is the correct explanation of statement I.

If both statement I and statement II are true but statement II is not the correct explanation of statement I.

If statement I is true but statement II is false

If both statement I and statement II are false

answer is A.

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Detailed Solution

A function f(t) is said to be periodic of time period T if f(t+T) = f(t)All sine or cosine functions are periodic. Thus, y = A sin ωt or A cos ωt is periodic of time period T = 2πω

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