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Byju's Answer
Standard XII
Mathematics
Nature of Roots
Find the natu...
Question
Find the nature of the roots of the following quadratic equations . If the real roots exit. find them:
1)
2
x
2
−
3
x
+
5
=
0
2)
3
x
2
−
4
√
3
x
+
4
=
0
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Solution
Solution:-
Given
quadratic
equations
(i)
2
x
2
−
3
x
+
5
=
0
comparing with the general equation of quadratic
a
x
2
+
b
x
+
c
,
we get
−
a
=
2
b
=
−
3
c
=
5
∴
D
=
b
2
−
4
a
c
=
9
−
40
<
0
⇒
Imaginary roots
(ii)
3
x
2
−
4
√
3
x
+
4
=
0
comparing with general quadratic equation
a
=
3
b
=
4
√
3
c
=
4
∴
D
=
b
2
−
4
a
c
=
√
3
−
48
<
0
⇒
Imaginary roots
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