[" If the roots of "(a^(2)+b^(2))x^(2)-2b(a+c)x+(b^(2)+c^(2))=0" are equal then "a,b,c" are in "],[[" (A) A.P."," (B) G.P."," (C) H.P."," (D) none of these "]]

if the roots of (a^(2)+b^(2))x^(2)-2b(a+c)+(b^(2)+c^(2))=0 are equal then a,b,c are in

If the roots of (a^(2)+b^(2)) x^(2)+2(a c+b d) x+(c^(2)+d^(2))=0 are equal then

if the roots of (a^2+b^2)x^2-2b(a+c)x+(b^2+c^2)=0 are real and equal then a,b,c are in

If the roots of the equation : (b-c)x^(2) + (c-a) x + ( a-b) = 0 are equal, then a,b,c are in :

Assertion (A): If the roots of (a^(2)+b^(2))x^(2)-2b(a+c)x+ (b^(2)+c^(2))=0 are real and equal then a, b, c are in G.P. Reason (R): If the sum of two non-negative reals is zero then each of them is zero.

If a(b-c)x^(2)+b(c-a)x+c(a-b)=0 has equal root,then a,b,c are in

If the roots of the equation (b-c)x^(2)+(c-a)x+(a-b)=0 are equal then a,b,c will be in