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Byju's Answer
Standard XII
Mathematics
Higher Order Derivatives
In the follow...
Question
In the following equation, find the value of
k
a
b
for which the given value is a solution of the given equation :
x
2
−
x
(
a
+
b
)
+
k
=
0
,
G
i
v
e
n
v
a
l
u
e
x
=
a
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Solution
Given,
x
2
−
x
(
a
+
b
)
+
k
=
0
x
=
a
⇒
a
2
−
a
(
a
+
b
)
+
k
=
0
a
2
−
a
2
−
a
b
+
k
=
0
∴
k
=
a
b
Given,
k
a
b
=
a
b
a
b
=
1
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1
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