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Mathematics
If the line px + qy = 0 coincides with one of the lines given by ax2 + 2hxy + by2 = 0, then
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Q. If the line px + qy = 0 coincides with one of the lines given by $ax^2 + 2hxy + by^2 = 0$, then
COMEDK
COMEDK 2014
A
$ ap^2 + 2hpq + bq^2 = 0 $
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B
$aq^2 + 2hpq + bq^2 = 0 $
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C
$ aq^2 - 2hpq + bp^2 = 0 $
100%
D
none of these
0%
Solution:
Correct answer is (c) $ aq^2 - 2hpq + bp^2 = 0 $