ax+b=0 and cx+d=0 are consistent if
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ax+b=0
cx+d=0
are consistent if a/c=b/d=0/0
then a/c not equal to b/d
cx+d=0
are consistent if a/c=b/d=0/0
then a/c not equal to b/d
malikarrahman76:
a)ad=bc
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