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If the point (1, a) lies in between the ...

If the point `(1, a)` lies in between the lines `x + y =1` and `2(x+y) = 3` then `a` lies in
(i)`(-infty,0)cup (1,infty)` (ii)`(0,1/2)` (iii)`(-infty,0)cup (1/2,infty)` (iv) none of these

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