question_answer

If \[\alpha \text{,}\beta \] be two complex numbers, then \[{{\left| \alpha  \right|}^{2}}+{{\left| \beta  \right|}^{2}}\]is equal to

A)  \[\frac{1}{2}({{\left| \alpha +\beta  \right|}^{2}}-{{\left| \alpha -\beta  \right|}^{2}})\]

B)         \[\frac{1}{2}({{\left| \alpha +\beta  \right|}^{2}}+{{\left| \alpha -\beta  \right|}^{2}})\]

C)  \[{{\left| \alpha +\beta  \right|}^{2}}+{{\left| \alpha -\beta  \right|}^{2}}\]

D)  None of these