SOLUTION: Evaluate. 2 sin22.5 degrees x cos22.5 degrees

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Question 562951: Evaluate.
2 sin22.5 degrees x cos22.5 degrees
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate.
2 sin22.5 degrees * cos22.5 degrees
**
sin2x=2sinxcosx
2 sin22.5 degrees * cos22.5 degrees=sin(2*22.5)º=sin45º