1.

if \[~{{a}^{4}}+{{b}^{4}}={{x}^{2}}{{y}^{2}}\], then \[\left( {{\mathbf{a}}^{\mathbf{6}}}+{{\mathbf{b}}^{\mathbf{6}}} \right)\] equals

A.  0     
B.  1
C.  \[{{x}^{2}}+{{y}^{2}}\]                    
D.  \[{{a}^{2}}{{b}^{4}}+{{a}^{2}}{{b}^{2}}\]
Answer» B.  1


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