Sin -30
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-0.5
sin(49) = - 0.9537526528 ------------------------------In radian mode. sin(49) = 0.7547095802 -----------------------------In degree mode.
SQRT(3)/4 - 1/4
I assume your 90 degree angle is on the right and the 30 degree angle is opposite that. ( degree mode ) sin theta = opposite/hypotenuse sin 30 degrees = opp./44 = 22
sin θ = cos (90° - θ) cos θ = sin (90° - θ)