Posted by jenny on Monday, March 5, 2012 at 5:45pm.
a). secx=-2
2pi/3 and 4pi/3
b). sinx=(2^(1/2)/2
its that value at pi/4, and 3pi/4
c). cosx=+ or - 1, so if they want multiple answers its 0, 2pi, and pi
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