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Grade: 12th pass 

                        
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
2 years ago

Answers : (1)

Deepak Kumar Shringi
askIITians Faculty
4402 Points 
							L1 L2 <0
(3-14+a)(9-28+a) <0
(a-11)(a-19)<0
11<a<19
i guess there is some error in the point you have given , check it again method is same
2 years ago
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