indices

Asked by  | 25th Jul, 2009, 07:06: AM

Expert Answer:

Consider (a+b)-1 (a-1+b-1)

1/(a+b) (1/a+1/b)

1/(a+b) (a+b)/ab

=1/ab= rhs

 

 


Answered by  | 27th Jul, 2009, 11:28: AM

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