Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Consider the group of nonzero real numbers, R* = R \ {0}, under mul-
tiplication and the group of positive real numbers, R+, under multiplication. Let
N = {1, -1}. Show that R*/N is isomorphic to R+ using the first isomorphism the-
orem verifying each step. (Hint: Consider the function : R* → R+ be defined by
4(x) = |x|.)
1
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Transcribed Image Text:Consider the group of nonzero real numbers, R* = R \ {0}, under mul- tiplication and the group of positive real numbers, R+, under multiplication. Let N = {1, -1}. Show that R*/N is isomorphic to R+ using the first isomorphism the- orem verifying each step. (Hint: Consider the function : R* → R+ be defined by 4(x) = |x|.) 1
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