a = 1, b = 2 then ab + ba = A) 4 B) 3 C) 2 D) 13 – InterviewSolution

1.

a = 1, b = 2 then ab + ba = A) 4 B) 3 C) 2 D) 13

Answer»

Correct option is (B) 3

We have a = 1, b = 2

Then \(a^b+b^a=1^2+2^1\) = 1+2 = 3

Correct option is B) 3

if a=1 and b=2
so;
1^2+ 2^1=
2+1=3

Option B is correct

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