Subject :IMO Class : Class 9
Find the value of reciprocal of (a + b)-1 (a-1 + b-1).
Aab
Ba/b
C1/ab
D(ab)2
Find the value of reciprocal of (a + b)-1 (a-1 + b-1).
Aab
Ba/b
C1/ab
D(ab)2