Solution Found!
Let S = {a + bi
Chapter 14, Problem 5E(choose chapter or problem)
QUESTION:
Let \(S=\{a+b i \mid a, b \in Z, b \text { is even }\}\). Show that S is a subring of Z[i], but not an ideal of Z[i].
Questions & Answers
QUESTION:
Let \(S=\{a+b i \mid a, b \in Z, b \text { is even }\}\). Show that S is a subring of Z[i], but not an ideal of Z[i].
ANSWER:Step 1 of 3
First we use Subring Test to prove that is subring of .