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प्रश्न
Find the midpoint of the line segment joining the following pair of point :
( a+3, 5b), (3a-1, 3b +4).
उत्तर
Coordinates of R are ,
R (x , y) = R `(("a" + 3 + 3"a" - 1)/2 , (5"b" + 3"b" +4)/2)`
= R (2a + 1 , 4b + 2)
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