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lf a, b, c are non-zero real numbers an...

lf `a, b, c` are non-zero real numbers and the equation `ax^2+bx+c+i=0` has purely imaginary roots, then

A

bc

B

`b^(2)c`

C

`-b^(2)c`

D

`1/2b^(2)c`

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