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Mathematics 8 Online
OpenStudy (anonymous):

find the zeros of the function in the interval of [-2pi,2pi] f(x)=3cosx

OpenStudy (anonymous):

In 3cosX, the 3 only effects amplitude. Are you familiar with the normal graph of the cos function?

OpenStudy (anonymous):

no i am not @ehuman

OpenStudy (anonymous):

Top graph is a normal cos over one cycle. The bottom graph is your function, 4cosx, can you find and name the zeros? |dw:1388954449941:dw|

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