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If z^3+3+2i(z+(-1+i a)=0 has on ereal ro...

If `z^3+3+2i(z+(-1+i a)=0` has on ereal roots, then the value of `a` lies in the interval `(a in R)` `(-2,1)` b. `(-1,0)` c. `(0,1)` d. `(-2,3)`

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