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Byju's Answer
Standard XI
Mathematics
Inequalities Involving Mathematical Means
Find the valu...
Question
Find the values of
a
and
b
, the sum and the product of the roots of the equation
4
a
x
2
+
4
b
x
+
3
=
0
are
1
/
2
and
3
/
16
respectively.
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Solution
Given,
sum of roots
=
1
2
product of roots
=
3
16
P
(
x
)
=
x
2
−
(
s
u
m
−
o
f
−
r
o
o
t
s
)
x
+
(
p
r
o
d
u
c
t
−
o
f
−
r
o
o
t
s
)
x
2
−
(
1
2
)
x
+
(
3
16
)
=
0
16
x
2
−
8
x
+
3
=
0
......(1)
Given,
4
a
x
2
+
4
b
x
+
3
=
0
.......(2)
comparing (1) and (2), we get,
4
a
=
16
⇒
a
=
4
4
b
=
−
8
⇒
b
=
−
2
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