Let u≡ax+by+a3√b=0, v≡bx−ay+b3√a=0 where a, b∈R−0 be two straight lines .The equation of the bisectors of the angle formed by k1u−k2v=0 & k1u+k2v=0 for non zero real k1 & k2 are
A
u = 2
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B
k2u+k1v=0
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C
k2u−k1v=0
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D
v = 0, u=0
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Solution
The correct option is D v = 0, u=0 Note that the lines are perpendicular.
Assume the co-ordinate are to be directed along u=0 & v=0.
Now the lines k1u−k2v=0 & k1u+k2v=0 are equally inclined with u−v axes.