Question: 2. Write a recursive function diff which takes two positive integer arguments ( x and y) and returns xy. You may not perform an xy

2. Write a recursive function diff which takes two positive integer

2. Write a recursive function diff which takes two positive integer arguments ( x and y) and returns xy. You may not perform an xy calculation anywhere in the function! Example calls: diff(3,7) returns 4;diff(7,3) returns 4

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