Tuesday

April 21, 2015

April 21, 2015

Posted by **Jack** on Tuesday, April 13, 2010 at 7:57pm.

- Trig -
**Reiny**, Tuesday, April 13, 2010 at 9:00pmSomething wrong with your question

tan(π/2) is undefined.

- Trig -
**Jack**, Wednesday, April 14, 2010 at 12:20amoh it's tan(x/2) = a ........... use the fact that x = 2 . x/2

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