Is arcsin(x)=1/sin?

Answer 1

csc = 1/sin (cosecant = 1/sine)

arcsin UNDOES sin

For example, if sin(30 degrees) = 1/2, then arcsin(1/2) = 30 degrees

Answer 2

No, (1 / sin x) = csc x This identity should be memorized

arcsin is the inverse relation of the sin.

E.g., sin 30° = 0.5

arcsin 0.5 = 30°