I did parts a and b I need help with parts c and d Reduced residue system modulo 15а.Find a reduced residue system modulo 15.b. Find the multiplicative inverse of each residue.С.Find all non-congruent solutions to x? = 1 (mod 15)d. Find all non-congruent solutions to x? = 4 (mod 15)

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Answered: c. Find all non-congruent solutions to…

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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c. Find all non-congruent solutions to x? = 1 (mod 15) d. Find all non-congruent solutions to x2 = 4 (mod 15)