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AP EAMCET Engineering 2014 Code A Solved Paper
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© examsnet.com
Question : 11
Total: 160
If
x
1
and
x
2
are the real roots of the equation
x
2
−
k
x
+
c
=
0
then the distance between the points
A
(
x
1
,
0
)
and
B
(
x
1
,
0
)
is
√
k
2
−
c
√
c
−
k
2
√
k
2
−
4
c
√
k
2
+
4
c
Validate
Solution:
x
1
+
x
2
=
k
x
1
x
2
=
c
|
x
1
−
x
2
|
=
√
(
x
1
+
x
2
)
2
−
4
x
1
x
2
=
√
k
2
−
4
c
© examsnet.com
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