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Question

A line is such that its segment between the straight lines 5xy4=0 and 3x+4y4=0 is bisected at the point (1, 5).
Then the equation is 107x3y92=0
Enter 0 if True and 1 if False.

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Solution

5xy+4=0...(i)
3x+4y4=0...(ii)
Let the required line intersect line (i) & (ii) at point
(α,β) & (a2,β2) respectively.
5α1β1+4=0β1=5α1+4...(iii)
3α2+4β24=0β2=43α24...(iv)
It is given that the mid point of line betn
(α1,β1) & (α2,β2) is (1,5)
α1+α22=1 & β1+β22=5
using equation (iii) & (iv) we get α1 & α2
α1+α2=2 and 20α13α2=20
Solving the above two equation, we get α1 & α2
α1=2623 & α2=2023,β1=22223
the equation on of the required line passing
through (1,5) & (α,β) is
y5=β15α11(x1)
107x3y92=0 Ans

1146440_258446_ans_7bd247d94bc24f7faa7efbdbd892ba86.jpg

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