value of discriminant & nature of roots Flashcards
(17 cards)
1
Q
D=0
A
1 Real root
2
Q
D>0 perfect square
A
2 Distinct Rational Roots
3
Q
D>0 not perfect square
A
2 Distinct Irrational Roots
4
Q
D<0
A
Imaginary Roots
5
Q
number of real roots when D>0 and perfect
A
2
6
Q
number of real roots when D>0 not perfect
A
2
7
Q
number of real roots when D<0
A
0
8
Q
number of real roots when D=0
A
1
9
Q
D=72
A
2 distinct irrational roots
10
Q
D= 12
A
2 distinct irrational
11
Q
D= -3
A
Imaginary Root
12
Q
D=0
A
1 Real Root
13
Q
D=9
A
2 Distinct Rational Roots
14
Q
equal and real rational roots
A
d=0
15
Q
distinct and rational roots
A
d>0 perfect square
16
Q
distinct and irrational roots
A
d>0 not perfect square
17
Q
distinct and non real root
A
d<0
