If f(x)=x3-1/x3 prove that f(x)+f(1)/x=0

f (x)  =   x3- 1/ x3
         =  (x6- 1) /  x3

f(1/x) =    (1/x)3 -  1/  (1/x)3
          =   1/x -  x3/ 1
          =  x6 -  1 / x3 
f(x) + f(1/x)  =   ( 1 - x+ x3 -  1 )/  x3
                     =    0/  x3  =  0


 
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yes its right



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f(x)+f(1/x)=0

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