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Bot To check whether or not the given sequence is an arithmetic progression, we need to see if there is a common difference between consecutive terms.
Let's subtract each term from its preceding term:
1/2 - 1 = -1/2
3 - 1/2 = 5/2
4 1/2 - 3 = 3/2
We can see that the differences between consecutive terms are not constant. Therefore, the given sequence is not an arithmetic progression.
Hence, we cannot find the values of a and d as it is not an arithmetic progression.
oobleck