The group of units in ₁2 is 12 (A) {1,5,7,11) (B) {2,3,4,6,8,9,10} (C) (2,3,4,6,8,9,10,12} (D) {1,5,7,9,11)

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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The group of units in 12 is
(A) {1,5,7,11}
(B) {2,3,4,6,8,9,10}
(C){2,3,4,6,8,9,10,12}
(D) {1,5,7,9,11}
Transcribed Image Text:The group of units in 12 is (A) {1,5,7,11} (B) {2,3,4,6,8,9,10} (C){2,3,4,6,8,9,10,12} (D) {1,5,7,9,11}
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