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Asked by lilbits

The period of y=5 cos pi x is 2 but I don't know how to find it.
16 years ago

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Answered by bobpursley
Doesn't the cosine function repeat each 2PI radians? So when X=2, or 4, or 2*whole number, it repeats.
16 years ago
Answered by lilbits
Thanks. I think I got it
16 years ago
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The period of y=5 cos pi x is 2 but I don't know how to find it.

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