. sin 225 degree
Best Answer
The value of sin 225 degrees is -0.707
Using conversion of degree into radian
θ in radians = θ in degrees × (π/180°)
225 degrees = 225° × (π/180°) rad = 5π/4 or 3.9269
sin 225° = sin (3.9269) = -(1/√2) or -0.7071067.
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