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26 December, 10:19

Write a cosine equation with period 8 and amplitude 2

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  1. 26 December, 12:31
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    Standard Equation for trig function: y = A cos (B (x - H)) + K

    *Here, we are just dealing with A (amplitude) and B (period)

    Period = 2π / b

    8 = 2π / b

    Solve for b: 2π/8 or π/4

    Equation: y = 2 cos (π/4 (x))
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