Having difficulty in solving the equation

[gobindo]

if a,b,c are in continued proportion .prove that (a+b+c)^2/(a^2 + b^2 +c^2 )=(a+b+c)/(a-b+c)

 

[MarkFL]

Re: having difficulty in solving the question.

Can you show what you have tried? Our helpers are better able to help if they can see where you are stuck. :D