MCQ
यदि $\mathrm{f}(\mathrm{x})=\frac{x}{x-1}=\mathrm{y}$ तो $\mathrm{f}(\mathrm{y})$ का मान होगा-
  • A
    $-X$
  • B
    x - 1
  • C
    x + 1
  • x

Answer

Correct option: D.
x
(D) x

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