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Let $f : R \to R$ is a function defined by $f (x) = 3 x - 4,$ then $f^{- 1} (x)$ is

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Correct option is A

f:R→R ⇒ f(x)=3 x -4f is one-one onto function.∴Let y=3x-4 x=y+43Replace x by y⇒y=x+43=f-1(x)

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Let f:R→R is a function defined by f(x)=3x-4, then f-1(x) is

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Let $f : R \to R$ is a function defined by $f (x) = 3 x - 4,$ then $f^{- 1} (x)$ is