what is the difference between sin-1 and csc?
Sine of an angle is the side of the triangle that does not touch the angle divided by the hypotenuse. ... cosecant is the reciprical of the sin function or 1/sin(x) so that csc(x)*sin(x) = 1 when it is defined. The two can be confused since arcsin(x) is often denoted as sin^-1(x) and x^-1 is 1/x.