gp

x1, x2, x3 are in GP and y1, y2,y3 are also in GP with same common ratio. then (x1,y1), (x2,y2)&(x3,y3) these are
a]vertices of a triangle
b]situated on a circle
c]collinear
d]situated on an ellipse

3 Answers

23
Rishabh Upadhyay ·

collinear..... try finding the slopes

36
rahul ·

x2/x1 = x3/x2 and y2/y1 = y3/y2

=> (x3 - x2)/(x2 - x1) = (y3 - y2)/(y2 - y1)

=> (y2 - y1)/(x2 - x1) = (y3 - y2)/(x3 - x2)

466
Himanshu Giria ·

c)collinear

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