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Popular >

amplitude of y=-4cos(2x)

Solution

amplitude

y = - 4 cos (2 x)

Solution

4

Solution steps

f (x) = - 4 cos (2 x), A = - 4

Therefore, the amplitude |A| is

4

4

Popular Examples

range of f(x)=-1/2 x^2+5x-2 range

f (x) = - \frac{1}{2} x^{2} + 5 x - 2

domain of f(x)=(sqrt(x+8))/(x-5)domain

f (x) = \frac{x + 8}{x - 5}

inverse of f(x)=6x^{1/4}+8 inverse

f (x) = 6 x^{\frac{1}{4}} + 8

domain of-x/(x-8)domain

- \frac{x}{x - 8}

line (3,-4),(-1,4)line

(3, - 4), (- 1, 4)

Frequently Asked Questions (FAQ)

What is the amplitude of y=-4cos(2x) ?
The amplitude of y=-4cos(2x) is 4