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Relations and Functions — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsRelations and Functions1 Mark
MCQ
Let f : $\text{R}-\{\frac{3}{5}\}\rightarrow\text{R}$ be defined by $\text{f(x)}=\frac{3\text{x}+2}{5\text{x}-2}.$ Then:
  • ✓
    $f^{-1}(x)=f(x)$
  • B
    $f^{-1}(x)=-f(x)$
  • C
    (fof) $x = -x$
  • D
    $\text{f}^{-1}(\text{x})=\frac{1}{19}\text{f(x)}$
✓

Answer

Correct option: A.
$f^{-1}(x)=f(x)$
a. $f^{-1}(x)=f(x)$

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