Let p and q be the point of trisection

Asked by admin @ 23/08/2021 in Math viewed by 332 People

Let P and Q be the points of trisection of the line segment joining the points A(2,-2) and B(-7,4) such that P is nearer to A.Find the coordinates of P and Q.

Answered by admin @ 23/08/2021

A-----p---------Q-----------B
according to question
AP=PQ=QB
hence P divide AB 1:2ratio
now use section formula
p (x, y)
x=(1 x (-7)+2 x 2)/(2+1)=-3/3=-1
y=(1 x4+2 x (-2)) /(2+1)=0
p (-1,0)
now Q divide line AB 2:1ratio
use again section formula
Q (r, u)
r=(2 x (-7)+1 x 2)/(2+1)=-12/3=-4
u=(2 x4+1 x (-2))/(2+1)=2
Q (-4,2)

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