1.

If \[\mathbf{x+}\frac{\mathbf{1}}{\mathbf{x}}\mathbf{=6}\], then the value of \[{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+}\frac{\mathbf{1}}{{{\mathbf{x}}^{\mathbf{4}}}}\mathbf{=}\]

A. 526   
B. 1154
C. 1528 
D.     529
E. None of these
Answer» C. 1528 


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