##
Problems

**Problem : **
What is the difference between arcsine and Arcsine?

The first one, arcsine, is an inverse trigonometric relation, whose range is
all real numbers. The second one, Arcsine, is an inverse trigonometric
function whose range is

[- ,].

**Problem : **
What is arccos(1)?

arccos(1) = 0
**Problem : **
What is arccot(1)?

arccot(1) =
**Problem : **
What is arcsec(0)?

No solution; the domain of Arcsecant does not include the real numbers between -
1 and 1.