Question: what is the difference between sin-1 and csc?
Answer: 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.