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amplitude of 2cos(3x)

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amplitude 2cos(3x)

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Amplitude definition

For f(x)=A·cos(Bx−C)+D the amplitude is |A|

f(x)=2cos(3x), A=2
Therefore, the amplitude |A| is 2

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domain 2cos(3x)

range 2cos(3x)

periodicity 2cos(3x)

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

amplitude of 2cos(3x)

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