SOLUTION: Use the reference angle to find the exact value of the expression. csc 660°

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Question 169069: Use the reference angle to find the exact value of the expression. csc 660°
Answer by jim_thompson5910(21667) About Me  (Show Source):
You can put this solution on YOUR website!
Note: 660 degrees is a coterminal angle to -60 degrees


csc%28660%29=1%2Fsin%28660%29=1%2Fsin%28-60%29=1%2F%28-sin%2860%29%29=-1%2Fsin%2860%29=-1%2F%28sqrt%283%29%2F2%29=-2%2Fsqrt%283%29=%28-2%2Asqrt%283%29%29%2F3


So csc%28660%29=%28-2%2Asqrt%283%29%29%2F3