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February 1, 2015

February 1, 2015

Posted by **John** on Wednesday, December 14, 2011 at 12:02am.

- trig -
**Reiny**, Wednesday, December 14, 2011 at 8:36amsin(1/2x) = 1/2

1/2x = π/6 or 1/2x = 5π/6 , (30° or 150°)

x = π/3 or x = 5π/3 , (60° or 300°)

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