Write condition so that a1x + b1y = c1 and a2x + b2y = c2 have unique solution .
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if lines L1 and L2 are two straight lines with equations a1x+b1y=c1 and a2x+b2y=c2 respectively,
then ,
1. lines are parallel if and only if a1b2=a2b1
2. lines are perpendicular to each other if and only if a1a2+b1b2=0
nussu2000:
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Answer:
ans :- a¹/a² is not equal to b¹/b²
Step-by-step explanation:
Unique Solution means the solution which has it's a¹/a² and b¹/b² not equal to each other
Hope it helps you....
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