How to find the minimum positive period in positive metaphysical function?

There are three methods to find the period of a function. The first method is to define f (x, t) = f (x) and t is not zero and is the smallest positive value. The second method is often used in relation to trigonometry. Y = asin (Wx θ) minimum positive period T = 2 π / w ACOS (Wx θ) minimum positive period T = 2 π / Watan (Wx θ) minimum positive period

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