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Mathematics 17 Online
OpenStudy (anonymous):

What are the zeros of f(x) = cos x on the interval [0, 2pi]? A) pi/2, 3pi/2 B) 0, pi, 2pi C) pi D) pi/2

OpenStudy (campbell_st):

do you know what the graph of cos(x) looks like..?

OpenStudy (campbell_st):

graph using https://www.desmos.com/calculator and you'll see the zeros

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