# How do I find the value of sin 5pi / 6?

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Dec 7, 2016

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sin

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Sin

Another way to think about it is to draw the angle in a Unit circle and create the "new" triangle in Quadrant II.

Drop a perpendicular to the x-axis and you will have the correct triangle to use.

From this triangle, you need the opposite leg length, which is

Since the hypotenuse is equal to 1 in the Unit circle, the opposite leg length is the answer for sine. (dividing by 1 is not necessary)

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