If abc=1, prove that

( I cannot write it.

Prove what is in image)

Dear student 
The equation will simplify to b/(b+ab+1) + c/(c+bc+1) + a/(a+ac+1) = 1
c = 1/ab 
Put c = 1/ab in the equation 
= b/(1+b+ab) + 1/(1+b+ab) + ab/(1+b+ab) 
= (1+b+ab)/(1+b+ab)
= 1 
Hope this will help 
Good Luck 

 

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