How do you find the amplitude, period, phase shift for $y = cos (\frac{1}{2} x)$ $y=cos(1/2x)$ ?

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Answer 1 · 2018-06-07T04:05:26

$y = cos (\frac{x}{2})$ $y = cos (x/2)$
Amplitude --> $\pm 1$ $+- 1$
Period --> $2 (2 π) = 4 π$ $2(2pi) = 4pi$
Phase shift --> 0

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