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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