Answered: 4.6 List all the elements of (Z45,)…

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4.6 List all the elements of (Z45,) that are of order 15.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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4.6 List all the elements of (Z45, ) that are of order 15.

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Step 1: We give definition of order .

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Step 2: We find elements of order 15 .

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Follow-up Question

In step 2, you wrote 15=3*5. Isn't 15 also equal to 1*15. How that's you don't list that as one of the factors?

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