Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:f:Z → Z,
f (m) :
3D Зт - 2
g(x) = |x|
g: R → S,
where S = {x E R|x 2 0}
%3D
%3D
h(x) = In(x)
R*is a set of positive real numbers
h: R* → R,
r:Z → Z,
r(n) =
%3D
p: Q → Q,
p(x) = x + 3
u: R → R,
u(x) = x²
1) Which of the functions above are injective?
2) Which of the functions above are onto functions?
3) Which of the functions above are neither injective nor surjective?
4) Which of the functions above are bijections?
Enter the functions separating them by commas. Enter "none" if there are no functions satisfying specified
conditions.
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