Monday

April 21, 2014

April 21, 2014

Posted by **Daniel** on Sunday, September 18, 2011 at 6:17pm.

Lim x -> 0^-

the |x| = -x?

- calculus -
**Steve**, Wednesday, September 21, 2011 at 4:09pmThat's because

|x| = x if x >= 0

|x| = -x if x < 0

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