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If 3 Sin 8 Cos 8 0 And 0 8 90 Find The Value Of 8 Video Sin 45 in Radians & Degrees You Recall that in a right triangle with angle measures degrees, the side lengths are at a 1√32 ratio as seen below Thus, we use the definition of sine to see that the 60 degree angle is opposite the √3 side and the hypotenuse is the 2 side Thus, since sin(60o) = √3 2, sin−1( √3 2) = 60o Answer link Sin 3/2 value in degrees