SOLUTION: Simplify completely: sqrt of fraction 1-cos40/2

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Question 1180336: Simplify completely:
sqrt of fraction 1-cos40/2
Answer by ikleyn(53765)   (Show Source): You can put this solution on YOUR website!
.

Use the formula of Trigonometry


 = .


From the formula,   = sin(20°).     ANSWER

Solved, answered and explained.



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