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Q.

If a=2 and b=3, then find the value of the following a b + b a a .


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a

169 36

b

36 169

c

12 13

d

13 12  

answer is A.

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Detailed Solution

Given a=2 and b=3 .
Putting the value of a and b and solving,
a b + b a a = 2 3 + 3 2 2
  = 4+9 6 2
  = 13 6 2
  = 169 36
The value of a b + b a a is 169 36 .
Therefore, the correct option is 1.
 
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