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if a,b,c are in ap a,x,b are in gp and b,y,c are in gp the point ( x,y) lies on

if a,b,c are in ap a,x,b are in gp and b,y,c are in gp the point ( x,y) lies on

Grade:11

1 Answers

Shashank Singh
askIITians Faculty 57 Points
3 years ago
a,b,c are in AP then
b= (a+c)/2
a,x,b are in GP then
x^2= ab
b,y,c are in GP then
y^2= bc
x^2+y^2= b(a+c)
now, since a+c = 2b
x^2+y^2= 2b^2
so the point (x,y) lies on a circle with centre (0,0) and radius v2b

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