1.

 Find the value of \[\frac{1}{1+{{x}^{-m}}}+\frac{1}{1+{{x}^{m}}}.\]

A.  \[0\]                                    
B.  \[{{x}^{m}}\]                    
C.  \[1\]                    
D.         \[{{x}^{-m}}\]                  
Answer» D.         \[{{x}^{-m}}\]                  


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