Question

〖sin〗^(-1) (sin⁡(-3π/10) ). Is this straight forward and the answer -.122 and you use the calculator in radians?

Answer 1

\[f^{-1}(f(x))=x\]

Answer 2

well, not always with arcsine and sine, but in this case since \(-\frac{3\pi}{12}\) is in the interval \([-\frac{\pi}{2},\frac{\pi}{2}]\) you have no worries

Answer 3

So it's just 3pie/10