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A(3,4)  B(4,13)
consider a point on the line Y=X,  p(a,a)
1 5 1
thanks for your answer but I am not satisfied
get me the coordinates of p
when you have PA+PB=M (let)
then find dM/da,for mini value of M dM/da=0
Let the coordinates of p be (a,a) ( as x=y)
as the distance is same so, PA=PB
now find PA+PB
0 0 0
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