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April 18, 2015

April 18, 2015

Posted by **Sandy** on Sunday, March 7, 2010 at 8:23pm.

- Trigonometry -
**Damon**, Sunday, March 7, 2010 at 8:51pmtan 45 degrees = 1, now worry about the quadrant (x and y different signs)

You are asking when tan theta = -1

that is at 90+45 degrees

and at 270 + 45 degrees

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