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Alika [10]
3 years ago
15

Write an equation for the sinusoidal function below using cosine

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

Step-by-step explanation:

y = Acos(θx + φ)

Amplitude is 5 Α = 5

period is 40° = 1/9 cycle so θ = 9

to start a sine wave using cosine, we must shift 90° φ = -90°

y = 5cos(9x - 90)

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