Page 1 of 1
5. If D is an integral domain with characteristic prime p, show that (a + b) = a + b for all a, b E D. Hint: р (a + b)'
Posted: Wed May 11, 2022 9:50 pm
by answerhappygod
- 1 (26.11 KiB) Viewed 28 times
5. If D is an integral domain with characteristic prime p, show that (a + b) = a + b for all a, b E D. Hint: р (a + b)' = a + (1)-'6+)==-262+...+ -2- 6-1) 262-++ ( b ap + abp 2 6. If R is a commutative ring with unity of characteristic 4, compute a 4 (a+b) for all a, b ER. 7. Find the characteristic of the subring {0,2,4,6,8} < Z10.