1,3,3,5,7,9,13,15(),()相邻奇数差为2,公差为2的等差数列
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1,3,3,5,7,9,13,15(),()相邻奇数差为2,公差为2的等差数列
1,3,3,5,7,9,13,15(),()相邻奇数差为2,公差为2的等差数列
1,3,3,5,7,9,13,15(),()相邻奇数差为2,公差为2的等差数列
1,3,3,5,7,9,13,15(21),(23)
1,3,3,5,7,9,13,15,(),()
1×1×1+3×3×3+5×5×5+7×7×7+9×9×9+11×11×11+13×13×13+15×15×15这题怎么计算?
找规律填数1,3,3,5,7,9,11,13,15,)(?)
2(3/5×7+3/7×9+3/9×11+3/13×15)过程是什么?
1、3、3、5、7、9、13、15、( )括号里应该是什么数?
1+3+5+9+7+11+13+15+17+19
1+3+5+7+9+11+13+15+…+99
1-3-5+7+9-11-13+15+17-.+999
1+3+5+7+9+11+13+15=
简便计算1/1*3*5+1/3*5*7+1/5*7*9+1/7*9*11+1/9*11*13+1/11*13*15中1/8(1+1/5-2/3)咋来的?
观察(1),(3,5),(7,9,11,),(13,15,17,19),...问2005在第.
1/(1*3*5)+1/(3*5*7)+1/(5*7*9)+1/(7*9*11)+1/(9*11*13+)1/(11*13*15)
1,3/-1,5/1,7/-1,9/1,11/-1,13/1,15/-1,(第2012个数)
数字推理,期待高人1/9,1,7,36,( )3/15,1/3,3/7,1/2,( )1/16,2/13,2/5,8/7,4 ( )
2,3,5,8,13,21,( ) 1,4,9,16,( ) ,() 1,3,7,15,31,(),127,255,
1/1*3*5+1/3*5*7+1/5*7*9+1/7*9*11+1/9*11*13+1/11*13*15怎么计算
1/(1*3*5)+1/(3*5*7)+1/(5*7*9)+1/(7*9*11)+1/(9*11*13)+1/(11*13*15)等于多少
简算1*3/1+3*5/1+5*7/1+7*9/1+9*11/1+11*13/1+13*15/1+15*17/1+17*19/1