WeBWorK Standalone Renderer

(a) If $f$ is one-to-one and $f(-9) = 9$ , then $f^{-1}( 9 ) =$ and $(f( -9 ))^{-1} =$ .
(b) If $g$ is one-to-one and $g(-10) = 12$ , then $g^{-1}( 12 ) =$ and $(g( -10 ))^{-1} =$ .

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