Why is f not a function from R to R if a) f (x) = 1/x? b)

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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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Discrete Mathematics and Its Applications

ISBN: 978-0073383095

7th edition

Authors: Kenneth H. Rosen

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Question Posted: May 02, 2016 12:17 PM

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Why is f not a function from R to R if a) f (x) = 1/x? b)

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a The expression Ix is meaningless for x 0 which is one of the elements in the ...View the full answer

Discrete Mathematics and Its Applications

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