A certain cosine function completes 6 cycles over the interval [0,2π].

Which function rule could model this situation?

f(x)=cos(16x)
f(x)=cos(x)+6
f(x)=cos(6x)
f(x)=6cos(x)

3 answers

see above

What type of answer is that?

f(x)=cos(6x)
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