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OpenStudy (anonymous):
Find the domain, period, range, and amplitude of the cosine function. y = -6cos4x
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OpenStudy (jdoe0001):
the amplitude of any trig function will be the absolute value of the number in front of it the period is found by Acos(Bx), regular period divided by B cosine regular period is \(\bf 2\pi \implies \cfrac{2\pi}{B}\)
OpenStudy (jdoe0001):
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