how many times do the graphs of y = sin 2x and y = cos 1/2 x interest on the interval [0,2pi]

it looks like to me just once at the origin 0. Is this correct? Please let me know asap. thanks

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- June 28th 2005, 12:50 PMTiffychopIntersect of sin and cos
how many times do the graphs of y = sin 2x and y = cos 1/2 x interest on the interval [0,2pi]

it looks like to me just once at the origin 0. Is this correct? Please let me know asap. thanks - June 28th 2005, 01:56 PMEne Dene
If your functions are:

y=sin(2x)

y=cos(1/2*x)

Than the answer is 5 times.