1.

Which one is different among the following?\[^{\mathbf{9}}\sqrt{\mathbf{3(}{{\mathbf{2}}^{\mathbf{8}}}\mathbf{-13)}}{{\mathbf{,}}^{\mathbf{3}}}\sqrt{\mathbf{9}}\mathbf{,}{{\mathbf{ }}^{\mathbf{9}}}\sqrt{\mathbf{729}}\mathbf{, }\frac{\mathbf{3}}{{{\mathbf{3}}^{\mathbf{1/3}}}}\] 

A.  \[^{9}\sqrt{3({{2}^{8}}-13)}\]                                                           
B.  \[^{3}\sqrt{9}\]
C.   \[^{9}\sqrt{729}\]                                                      
D.  \[\frac{3}{{{3}^{1/3}}}\]
E.  None of these   
Answer» F.


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