Let G be a group and let x EG be an element of order 18. Find the orders of *²x²x²x²x¹². 12

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Chapter2: Second-order Linear Odes
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Section 4. Powers of an Element; Cyclic Groups
41
4.4 In (Z30.), find the orders of the elements 3, 4, 6, 7, and 18.
4.5 Let G be a group and let xEG be an element of order 18. Find the orders of
x², x¹, x², x³, x¹²
4.6 List all the elements of (Z4s.) that are of order 15.
4.7 Let G=(x) be a cyclic group of order 24. List all the elements in G that are of
order 4.
4.8 The set of even integers forms a group under addition. Is this group cyclic?
49 Show that (Q*.-) is not cyclic.
Transcribed Image Text:@nlaceholder. 17512.edu. Printing is for personal, private use only. No part of this thout publisher's prior permission. Violators will be prosecuted. Printed by: a0df8c51303f01a@placeholder. 17512.edu. Printing is for personal, private use only. No pecu may be reproduced or transmitted without publisher's prior permission. Violators will be prosecu Section 4. Powers of an Element; Cyclic Groups 41 4.4 In (Z30.), find the orders of the elements 3, 4, 6, 7, and 18. 4.5 Let G be a group and let xEG be an element of order 18. Find the orders of x², x¹, x², x³, x¹² 4.6 List all the elements of (Z4s.) that are of order 15. 4.7 Let G=(x) be a cyclic group of order 24. List all the elements in G that are of order 4. 4.8 The set of even integers forms a group under addition. Is this group cyclic? 49 Show that (Q*.-) is not cyclic.
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