Nature Of Roots Flashcards
1
Q
Natural numbers
A
1, 2, 3…
2
Q
Counting numbers
A
0, 1, 2….
3
Q
Integers
A
…-2, -1, 0, 1, 2….
4
Q
Rational numbers
A
Integer over an integer 1/2 or recurring decimal
5
Q
Irrational numbers
A
Non-recurring decimal
6
Q
Imaginary/non-real numbers
A
Square route of any negative number
7
Q
Delta
A
b^2 - 4ac
8
Q
If Δ = perfect square
A
Real, rational, unequal
9
Q
If Δ is NOT perfect square but Δ>0
A
Real, irrational, unequal
10
Q
If Δ = 0
A
Real, rational, equal
11
Q
If Δ<0
A
Unequal, non-real, imaginary
12
Q
If Δ ≥ 0
A
Real only
