Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Question

Please answer True or False for the following statements...

1. For every nonnegative integer n, 9|(64^n  - 1)

(believe this is True but don't know how to check or make sure)

2.Let A = B be a finite set of real numbers. If f:A->B is 1-1 then f is onto

(I think this is true but what's the definition that cooroborates this?)

3. Let A = B be a infinite set of real numbers. If f:A->B is 1-1 then f is onto

(no idea for infinite sets)

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