If (a,b) is the mid point of line segment joining the points A(10,-6) and B(k,4) and a-2ab=18, find the value of k and distance AB

We have (a,b) as the mid point of line segment joining the points A(10,-6) and B(k,4).

So,

Comparing both the sides we get,

We have a relation-

Therefore the distance between A and B

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