1.

If \[\sqrt{\mathbf{x}}\mathbf{=}{{\mathbf{a}}^{\mathbf{1/3}}}\mathbf{+}{{\mathbf{a}}^{\mathbf{-1/3}}}\] and \[\sqrt{\mathbf{y}}\mathbf{=}{{\mathbf{a}}^{\mathbf{1/3}}}\mathbf{-}{{\mathbf{a}}^{\mathbf{-1/3}}}\], then find the value of \[{{\mathbf{x}}^{\mathbf{2}}}\mathbf{-}{{\mathbf{y}}^{\mathbf{2}}}\]

A.  \[2({{a}^{2/3}}+{{a}^{-2/3}})\]                                           
B.  \[4({{a}^{1/3}}+{{a}^{-1/3}})\]
C.  \[8({{a}^{2/3}}+{{a}^{-2/3}})\]       
D.  \[16({{a}^{1/3}}+{{a}^{-1/3}})\]
E.  None of these
Answer» D.  \[16({{a}^{1/3}}+{{a}^{-1/3}})\]


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