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数学
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11²+12²+13²+14²+15²
人气:160 ℃ 时间:2020-03-30 10:40:06
解答
855谢谢那道结果是11375
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(10²+11²+12²+13²+14²)÷365=?用简便方法
(±11)²= ( ) (±12)²=( ) (±13)²=( )
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