sin^2 45+cos (33-theta)-sin(57+theta)
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Answer:
sin^2 45+cos (33-theta)-sin(57+theta)
= 1/2 + sin (90 - 33 + theta) - sin(57+theta)
= 1/2 + sin (57 + theta) - sin(57+theta)
= 1/2 + 0
= 1/2
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