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Trigonometry 11 Online
OpenStudy (anonymous):

y=6/7cos x/2 need to find the period and amplitude?

OpenStudy (anonymous):

anyone?

hero (hero):

The amplitude is the coefficient of the cosine function The period is 2pi divided by the coefficient of variable x

OpenStudy (mathmale):

This problem might be easier for you and others if you'd please enclose that 6/7 in parentheses first. Next, factor x/2 into (1/2)x. What's the coefficient of the cosine function? What's the coefficient of x? How do these results translate into amplitude and period?

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