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posted by tina on Thursday, January 31, 2013 at 10:49pm.
cos(+pi/2-theta)/csctheta+cos^2theta
cos(π/2 - Ø) = sinØ , complementary angle property then cos(+pi/2-theta)/csctheta+cos^2theta = cos(π/2-Ø) * 1/cscØ + cos^2 Ø = sinØ ( sinØ) + cos^2 Ø = sin^2 Ø + cos^2 Ø = 1
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