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AP EAMCET Engineering 2015 Code C Paper
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© examsnet.com
Question : 13
Total: 160
If the slope of one lines represented by
a
x
2
−
6
x
y
+
y
2
=
0
is the square of the other, then the value of a is
-27 or 8
-3 or 2
-64 or 27
-4 or 3
Validate
Solution:
m
+
m
=
−
2
h
b
=
6
1
m
.
m
2
=
a
b
=
a
m
3
=
a
m
2
+
m
−
6
=
0
(
m
+
3
)
(
m
−
2
)
=
0
m
=
−
3
;
m
=
2
a
=
−
27
;
a
=
8
© examsnet.com
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