1+3+5+7+9+11.+33
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1896656 共回答了16个问题
|采纳率87.5%- 1+3+5+7+9+11.+33
=17*17
=289
连续奇数的和等于它们个数的平方 - 1年前
louwd88 共回答了1个问题
|采纳率- 无语
- 1年前
wwwwyyyyhhhh 共回答了9个问题
|采纳率- (1+33)*16+17=561 希望能帮到你.
- 1年前
evaandzh 共回答了9个问题
|采纳率- 梯形公式
(1+33)×17÷2=289
17指的是从1、3、5、7…… 33,共17个数字,个数就是(33-1)÷2+1 - 1年前
康晨光 共回答了40个问题
|采纳率- (1+33)((33-1)/2+1)÷2=289
- 1年前
qq800010 共回答了1个问题
|采纳率- 289
- 1年前
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