Solve for $x,$ $ (\sin ^{-1} \large\frac{1}{5}$$+\cos ^{-1} x)=1$

Question

$\begin{array}{1 1} \large\frac{1}{5} \\ \large\frac{6}{5} \\ \large\frac{3}{5} \\ \large\frac{7}{5} \end{array} $