(+1)+(-2)+(+3)+...+(+2005)+(-2006)要过程,顺便讲解每一个过程(有劳了)速求!(我现在这90°鞠躬,谢
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![(+1)+(-2)+(+3)+...+(+2005)+(-2006)要过程,顺便讲解每一个过程(有劳了)速求!(我现在这90°鞠躬,谢](/uploads/image/z/10305902-38-2.jpg?t=%28%2B1%29%2B%28-2%29%2B%28%2B3%29%2B...%2B%28%2B2005%29%2B%28-2006%29%E8%A6%81%E8%BF%87%E7%A8%8B%2C%E9%A1%BA%E4%BE%BF%E8%AE%B2%E8%A7%A3%E6%AF%8F%E4%B8%80%E4%B8%AA%E8%BF%87%E7%A8%8B%EF%BC%88%E6%9C%89%E5%8A%B3%E4%BA%86%EF%BC%89%E9%80%9F%E6%B1%82%21%EF%BC%88%E6%88%91%E7%8E%B0%E5%9C%A8%E8%BF%9990%C2%B0%E9%9E%A0%E8%BA%AC%2C%E8%B0%A2)
(+1)+(-2)+(+3)+...+(+2005)+(-2006)要过程,顺便讲解每一个过程(有劳了)速求!(我现在这90°鞠躬,谢
(+1)+(-2)+(+3)+...+(+2005)+(-2006)要过程,顺便讲解每一个过程(有劳了)速求!(我现在这90°鞠躬,谢
(+1)+(-2)+(+3)+...+(+2005)+(-2006)要过程,顺便讲解每一个过程(有劳了)速求!(我现在这90°鞠躬,谢
+1-2=-1
+3-4=-1
2006/2=1003(个-1)
1003*(-1)=-1003
(1-2)+(3-4)+(5-6)+…+(2005-2006)=(-1)*1003=-1003
=(1-2)+(3-4)+……+(2005-2006)
=(-1)*2006/2
=-1003
2 1 -2 -3
(1+1/2+1/3+...
1,1,1,2,2,2,3,3,3,填三阶幻方
1/(2^3)+1/(2^3+1)+1/(2^3+2)+1/(2^3+3)+...+1/(2^4-1)
1,1/2,3/2,3/8,( ),( )
1+1+2+2+3+3+````````````````````````````+99999
1+3+2+1+1x2+3
求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)
1+1+1+2+2×3
[-2*1/4+(-1/2)3]*(-2*2/3)+(-1*2/3)2÷5/3
下面这段Matlab中BP神经网络模型的代码中的LP.lr=0.P=[1,2,1,3,1,2,3,2,2,1,3,2,3,2;2,1,3,2,1,1,3,3,2,1,3,2,3,2;1,1,3,3,1,2,2,3,2,1,3,2,2,2;1,2,1,3,1,2,1,1,1,1,1,2,2,2;2,2,1,1,1,2,1,2,2,2,3,2,3,2;1,3,1,3,1,2,1,2,1,2,2,1,1,3;2,3,1,3,1,2,1,2
1+2-3-3-3-3=?
证明 1+1/1+1/1*2+1/1*2*3+.+1/1*2*3*...*n
(1/2+1/3)÷(2/3-3/2)=?
1+1/1+2+1/1+2+3+---- +1/1+2+3+ ---- 3Q
求四阶行列式:2 -1 3 2 3 -3 3 2 3 -1 -1 2 3 -1 3 -1
(-2/3)+1/2+4/5+(-1/2)+(-1/3)
1/1+1/2+2/2+1/2+1/3+2/3+3/3+2/3+1/3+.+1/20+2/20+.+20/20+.+2/20+1/20