so, did you do it?
what did you get?
try wolframalpha.com
http://www.wolframalpha.com/input/?i=sin+2x+%2B+1.5+cos+x,+0%3Cx%3C2pi
Use a graphing utility to approximate the solutions (to three decimal places) of the given equation in the interval square bracket0, 2π)
sin 2x + 1.5 cos x = 0
a. x = 1.624, 1.932, 5.776, 5.997
b. x = 1.055, 3.785, 4.652, 5.721
c. x = 1.101, 2.118, 3.982, 5.104
d. x = 1.484, 13799, 4.626, 5.490
e. x = 1.571, 3.990, 4.712, 5.435
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