solve this.... ........... .........
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1. a1/a2=2/4=1/2.....b1/b2=3/6=1/2.....c1/c2=8/9..
they are inconsistent...
they have no solutions...
they are parallel lines...
2. a1/a2=1/3....b1/b2=-2/4=-1/2....c1/c2=1/20..
they are consistent...
they have 1solution...
they are intersecting lines....
Explanation:
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