Week 2 - Rational Numbers and Fields Flashcards
1
Q
What is a rational number?
A
A number that can be represented as the ratio of 2 integers.
2
Q
What is the symbol for rational numbers?
A
Q
3
Q
Every rational number, except 0, has a…
A
Multiplicative inverse
4
Q
a/b * b/a =
A
1
5
Q
What is a field?
A
A ring where every element, except 0, has a multiplicative inverse that’s in the set
6
Q
What is a real number?
A
A number that can’t be represented as the ratio of 2 integers.
7
Q
What is the symbol for real numbers?
A
R
