(Solved): Find the exact value of the real number \( y \) if it exists. Do not use a calculator. \[ y=\csc ^{ ...

Find the exact value of the real number \( y \) if it exists. Do not use a calculator. \[ y=\csc ^{-1}\left(-\frac{2}{\sqrt{2}}\right) \] Select the correct answer below and, if necessary, fill in the answer box to complete your A. \( y=\csc ^{-1}\left(-\frac{2}{\sqrt{2}}\right)= \) (Simplify your answer. Type an exact answer, using \( \pi \) as needed. Use integers or fr B. \( \csc ^{-1}\left(-\frac{2}{\sqrt{2}}\right) \) does not exist.