Question

Set of multiples of 4 forms an ideal in z, the ring of integers under usual addition and multiplication. this ideal is

Answer 1

Question: Set of multiples of 4 forms an ideal in Z, the ring of integers under usual addition and multipli...
Set of multiples of 4 forms an ideal in Z, the ring of integers under usual addition and multiplication. This ideal is,

a prime ideal but not a maximal ideal.

a maximal ideal but not a prime ideal

both a prime ideal and a maximal ideal

neither a prime ideal nor a maximal ideal






Removable singularity

Simple pole

Branch point

Essential singularity





2

5

7

49










a and b

b and c

c and d

d and a







a = 1 and b = 0

a = 0 and b = 1

a = 1 and b not equal to 0

a = 0 and b not equal to 1