Question

if the roots of quadratic equation (a-b)x2+(b-c)x+(c-a)=0 are equal. then prove that 2a=b+c​

Answer 1

Here's d answer...

In the first picture, I have taken out the D ie. The discriminant

And in second as roots are real, D= 0

THANKS!!

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Answer 2

plz refer to this attachment