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Q.) If u = a1x + b1y + c1 = 0, v = a2x + b2y + c2 = 0 and a1 / a2 =b2/b2=c1/c2, then the curve u + kv = 0 is
[A]
the same straight line
[B]
different straight line
[C]
not a straight line
[D]
none of these
[A] the same straight line
[B] different straight line
[C] not a straight line
[D] none of these
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