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find the domain and range of f(x)=x²-y/x-2 |
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Answer» \(f(x) = \frac {x^2 - 4}{x - 2}\) Domain = \(R -\{2\}\) (∵ f(x) is not defined at x = 2) \(f(x) = \frac {x^2 - 4}{x - 2} = \frac{(x-2)(x+ 2)}{x - 2} = x+ 2 , x\ne 2\) \(\therefore f(x) \ne 4\) Range = \(R - \{4\}\). |
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