1.

The values of \[x\] and \[y\] for which the numbers \[3+i{{x}^{2}}y\] and \[{{x}^{2}}+y+4i\] are conjugate complex can be

A. \[(-2,-1)\]or \[(2,-1)\]
B. \[(-1,\text{ }2)\]or \[(-2,\text{ }1)\]
C. \[(1,\,2)\]or \[(-1,-2)\]
D. None of these
Answer» B. \[(-1,\text{ }2)\]or \[(-2,\text{ }1)\]


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