1.

alpha,beta are the roots of ax^(2)+2bx+c=0 and alpha+delta,beta+delta are the roots of A x^(2)+2Bx+C=0, then what is (b^(2)-ac)//(B^(2)-AC) equal to ?

Answer»

`(B//B)^(2)`
`(a//A)^(2)`
`(a^(2)b^(2))//(A^(2)B^(2))`
`ab//AB`

ANSWER :A::B


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