Question: 15. Write a python expression that given a dataframe with two columns ( A ', 'B') expand the dataset with a third column (A+B) that

15. Write a python expression that given a dataframe with two columns ( A ', 'B') expand the dataset with a third column (A+B) that shows the values of a+b : input: [A ''B] [1,2] [3,4] [5,6] [7,8] Output: [A,B,A+B] [1,2,3] [3,4,7] [5,6,11] [7,8,15]

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