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Byju's Answer
Standard XII
Mathematics
Relations between Roots and Coefficients : Higher Order Equations
The sum of al...
Question
The sum of all non-integer roots of the equation
x
5
–
6
x
4
+
11
x
3
–
5
x
2
–
3
x
+
2
=
0
is
A
6
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B
-11
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C
-5
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D
3
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Solution
The correct option is
D
3
Putting
x
=
1
⇒
1
−
6
+
11
−
5
−
3
+
2
=
0
On putting
x
=
2
⇒
32
−
96
+
88
−
20
−
6
+
2
=
0
∴
(
x
−
1
)
(
x
−
2
)
(
x
3
−
3
x
2
+
1
)
=
0
So, sum of non integer roots
=
3
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4
Similar questions
Q.
The sum of non-integeral roots of the equation
x
4
−
3
x
3
−
2
x
2
+
3
x
+
1
=
0
is
Q.
Universal set,
U
=
{
x
|
x
5
−
6
x
4
+
11
x
3
−
6
x
2
=
0
}
A
=
{
x
|
x
2
−
5
x
+
6
=
0
}
B
=
{
x
|
x
2
−
3
x
+
2
=
0
}
what is
(
A
∩
B
)
′
equal to
Q.
Universal set
U
=
{
x
|
x
5
−
6
x
4
+
11
x
3
−
6
x
2
=
0
}
A
=
{
x
|
x
2
−
5
x
+
6
=
0
}
B
=
{
x
|
x
2
−
3
x
+
2
=
0
}
What is
(
A
∩
B
)
′
equal to?
Q.
Two sets A and B are given as
A
=
{
x
|
x
is an integer root of the equation
x
5
−
6
x
4
+
11
x
3
−
6
x
2
=
0
}
B
=
{
x
|
x
is a real root of the equation
a
x
5
+
2
a
x
3
+
2
b
x
2
+
b
=
0
,
a
,
b
∈
R
such that the given equation have
maximum number of real roots.
}
Then, which of the following is correct?
Q.
Two non - integer roots of the equation
(
x
2
+
3
x
)
2
−
(
x
2
+
3
x
)
−
6
=
0
are
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