find the ration in which the point P (k,7) divides the segment joining the point A (8,9) and B (1,2) Also find the value of 'k'.
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let ratio m1:m2
7=2m1+9m2/m1+m2
7m1+7m2=2m1+9m2
5m1=2m2
m1:m2=2:5
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