Trig/Math

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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.

  • Trig/Math -

    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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