Math miscellaneousHard
Question
If one of the lines given by 6x2 - xy + 4cy2 = 0 is 3x + 4y = 0, then c equals
Options
A.1
B.-1
C.3
D.-3
Solution
m1 + m2 = 
, m1 m2 = 
and m1 = - 
Hence c = - 3.
, m1 m2 = and m1 = - Hence c = - 3.
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