1.

If \[y={{2}^{1/{{\log }_{x}}4}}\], then x is equal to      [Roorkee 1998]

A.            \[\sqrt{y}\]
B.            \[y\]
C.            \[{{y}^{2}}\]
D.            \[{{y}^{4}}\]
Answer» D.            \[{{y}^{4}}\]


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