Prove the following:
(i) (a + b)-1 (a-1 + b-1) = 1/ab
Solution:
(i) (a + b)-1 (a-1 + b-1) = 1/ab
Here
LHS = (a + b)-1 (a-1 + b-1)
We can write it as
= RHS
Hence, proved.
= xyz
= RHS
Hence, proved.
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