We will evaluate the exact value of sin(15 degrees), i.e. sin(pi/12) but there are three ways of doing so. We will first use the angledifference formula for sine, then the halfangle formula for sine, and finally a 157590 special triangle. This tutorial will help you with your trigonometry and precalculus classes!

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0:00 3 ways of evaluating sin(15 degrees)
0:21 using angle difference formula
3:56 using halfangle identity
7:17 using157590 special triangle