1. ## Question about derivatives of arcsec and arccsc

So the "formulas" for them are:

Could someone explain to me the absolute value notation in the denominator? Thanks!

2. Originally Posted by ty2391
So the "formulas" for them are:

Could someone explain to me the absolute value notation in the denominator? Thanks!
If x is positive the |x| = x. If x is negative then |x| = -x.

-Dan