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What are the amplitude, period, and phase shift of the given function? f(t)=2.3cos0.25pi


amplitude: 2.3; period: 0.25; phase shift: 1


amplitude: -2.3; period: 4; phase shift: 0


amplitude: 2.3; period: 2; phase shift: −1


amplitude: 2.3; period: 8; phase shift: 0

Sagot :

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Answer: opption D

Step-by-step explanation:

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Answer:

The answers amplitude is 2.3 the period is 8 and the phase shift is 0 since there is no C as shown below

Step-by-step explanation:

[tex]y = a \cos(bx - c) + d[/tex]

[tex]phase = |a| = |2.3| = 2.3[/tex]

[tex]period = \frac{2\pi}{b} \: so[/tex]

[tex]2\pi \div \frac{1}{4} \pi = 2\pi \div \frac{\pi}{4} = \frac{2\pi}{1} \times \frac{4}{\pi} = 8[/tex]

[tex]phase \: shift = c = 0[/tex]

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