Question

Question Use set-builder notation to describe the set of all odd integers. Select the correct answer below: O {n|2n +1 €Z} O {2n | neZ}O {2n +1 | * € Z} O {2n +1 ne Z}

Answer 1

First let's define how to write the odd intergers:

When you have an odd it menas you have the result of a number multiply by 2 (or a even number) +1, so, if you need to express the odds you have:

2n+1

Now the ingergers are represented by the Z

Then so, the set of all odd integers is:

$2n+1\in Z$

where

∈ means belongs

Z means intergers

n is the n- umpteenth term.