1. In Z[i], 1+2i and ___ are associates a) 2+i b) -2-i c) 2-i d) 1-2i e) none of the above 2. What is the gcd of 2 and -1+5i? (gcd must be a common divisor of largest norm) a) 1-5i b) -i c) 1-i d) 2-i e) none of the above

1. In Z[i], 1+2i and ___ are associates a) 2+i b) -2-i c) 2-i d) 1-2i e) none of the above 2. What is the gcd of 2 and -1+5i? (gcd must be a common divisor of largest norm) a) 1-5i b) -i c) 1-i d) 2-i e) none of the above

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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Question

1. In Z[i], 1+2i and ___ are associates

a) 2+i

b) -2-i

c) 2-i

d) 1-2i

e) none of the above

2. What is the gcd of 2 and -1+5i? (gcd must be a common divisor of largest norm)

a) 1-5i

b) -i

c) 1-i

d) 2-i

e) none of the above

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