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Value of f(y)

Asked by Harshal Saptarshi | 4th Sep, 2010, 11:52: PM

Expert Answer:

$f (x) = \frac{x}{x - 1} = \frac{1}{y}$ $So y = \frac{x - 1}{x}$ $Now f (y) = \frac{y}{y - 1} = \frac{\frac{x - 1}{x}}{\frac{x - 1}{x} - 1} = \frac{x - 1}{x} . \frac{x}{- 1} = 1 - x$ ">

Answered by | 5th Sep, 2010, 11:29: AM

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