Meaning of $\sin^{-1}()$ and $\sin^{(-1)}()$

Question

Which of $\sin^{-1}()$ and $\sin^{(-1)}()$ refers to $\arcsin(\sin(x)) = x$ and $\csc(x) = \frac{1}{\sin(x)}$?

Answer 1

To the best of my knowledge, there is no agreed upon applicable universal convention.

So, if you are the reader, you have to try to guess the intent from the surrounding context.

If you are the writer, it is best to specify what convention that you are using. In the alternative, you can use the unambiguous arcsin$(x)~$ and $~\left[ ~\sin(x) ~\right]^{-1}.$