SOLUTION: find the exact value of the expression sin 165 degrees

Question 482088: find the exact value of the expression
sin 165 degrees
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
find the exact value of the expression sin 165 degrees.
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sin (x+y)=sinxcosy+cosxsiny
sin 165�=sin(120+45)
=(sin120*cos45)+cos120*sin45)
=(√3/2*√2/2)+(-1/2*√2/2)
=((√6)/4)-√2/4
sin 165�=(√6-√2)/4
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