1, - 2,3, - 4,5, - 6,7, - 8. What's the rule Use the formula to express! | Math enthusiast | Mathematical art

1, - 2,3, - 4,5, - 6,7, - 8. What's the rule Use the formula to express!

Are you a senior high school student? This is a simple sequence problem. The general formula is like this, (- 1) ^ (n + 1) * n. if you are not a senior high school student, I believe you can understand it. N means the number of items

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