Solving trigonometric equations using factoring
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sin^2 x - sinx = 0 in radians
0, pi/2, pi
3 tan^2 x - 1 = 0 in degrees
30, 150, 210, 330
2 sin^2 x - sin x - 1 = 0 in radians
pi/2, 7pi/6, 11pi/6
csc^2x-cscx-12=0 (use calculator, use sin^-1 of the reciprocal ratio)
340.5 and 199.47 degrees
