CBSE Class 9 Answered
If a =
2, b = 3 then find the values of the following:
(i) (ab
+ ba)-1 (ii)
(aa + bb)-1
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(i)
(ab + ba)-1
= (23 + 32)-1
= (8 + 9)-1
=17-1 = 
(ii)
(aa + bb)-1
= (22 + 33)-1
= (4 + 27)-1
= 31-1 = 
Answered by | 04 Jun, 2014, 03:23: PM
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