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Why is f not a function from R to R if a) f (x) = 1/x? b) f (x) = √x? c) f (x) = ±√(x² + 1)?
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Dhanalakshmi
April 29, 2019, 11:18am
1
Why is f not a function from R to R if a) f (x) = 1/x? b) f (x) = √x? c) f (x) = ±√(x² + 1)?