1.

Let E_(1)equiv a x^(2)+ bx + c,E_(2)equiv bx^(2) + cx + a,E_(3) equiv cx^(2) + bx + a and (a^(2))/(bc)+ (b^(2))/(ca)+(c^(2))/(ab)=3. If thesequadratic expressions have a common zero, then the quadratic expression having zeros that are common to E_(3)and different from the zeros of E_(1) is

Answer»

`X^(2)- (a(B+c))/(bc) x+ bc`
`AX^(2)+bx +c`
`x^(2)- b(c+ a) x + AC`
`x^(2)- (a(b+c))/(bc)+(a^(2))/(bc)`

Answer :D


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