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Fynjy0 [20]
3 years ago
15

the function f(x)=-2cos(3x-pi/4) has. . a. amplitude 3 and period pi. b. amplitude 2 and period 2pi/3. c. amplitue 3 and period

2pi. d. amplitude 3 and period 4pi
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0
Form of the function:
y = a cos ( b x + c )            a = -2, b = 3
where amplitude is | a | = |-2 | = 2
and period: T = 2π/b = 2π/3
Answer: B ) amplitude 2 and period 2π/3
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The place value chart is added in the attached image.

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