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2 years ago

What is the frequency of the function f(x)?

Mathematics

1 answer:

Alex73 [517]2 years ago

8 0

Answer:

frequency = 1/(2π)

Step-by-step explanation:

The frequency of the function is found by comparing the argument of the cosine function to (2πfx), where f is the freuqency.

2πfx = x . . . . the argument of the cosine is x in f(x)=2cos(x) -4

2πf = 1 . . . . . . divide by x

f = 1/(2π) . . . . . the frequency of the function f(x)

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A sector with a radius of 8 cm has an area of 56pi cm2. What is the central angle measure of the sector in radians?

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$\frac{7\pi}{4}$ .

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Substitute $A=56\pi$ and r=8 in the above formula.

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