if the point (1,2) and (3,4)were to be opposite side of line3x-7y+a=0 then - 7<a<11
- a=11
- a=7
- a<7 or a>11
if the point (1,2) and (3,4)were to be opposite side of line3x-7y+a=0 then
- 7<a<11
- a=11
- a=7
- a<7 or a>11
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