If the roots of the equation a(b-c)x^2+b(c-a)x+c(a-b)x+c(a-b) are equal then show that 2/b =1/a+1/c

If the roots of the equation a(b-c)x^2+b(c-a)x+c(a-b)x+c(a-b) are equa

1.	If the roots of the equation a(b-c)x^2+b(c-a)x+c(a-b)x+c(a-b) are equal then show that 2/b =1/a+1/c
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