if sin theta + cos theta is equals to 1 then sin theta into cos theta is equals to
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Sin ø + cos ø = 1 ; ø = 30
Sin ø . Cosø = 1/2 * 1/2 = 1/4
Sin ø . Cosø = 1/2 * 1/2 = 1/4
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Sin theta × Cos theta = 0
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