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2. f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function.

3. f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

1 answer

amplitude is 1/4 given

when x/2 = 2pi we have a period
4 pi is period

- pi/2 is phase shift

same deal for the next one
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