Find the cordinate of a point on the line segmant joining A(1,2),and B (-2,7) is divided by x axis Also finds the coordinates of the point of division.
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Let the required coordinate be P(0,x)
Let P intersect AB in ratio k:1
coordinate of P=k(-2)+1/(k+1) and k(7)+2/(k+1)
=1-2k/(k+1) and 7k +2/(k+1)
A/q. 1-2k/(k+1)=0
1-2k= 0
k=1/2
Ratio=1/2:1=1:2
coordinate of P=(0 and{7(1/2)+2}/(1/2+1)
= 0 and (11/2)/(3/2)
=0 and 11/3.
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