-1,1,0,2,4,9,-1,1,0,2,4,9,（）,

-1,1,0,2,4,9,-1,1,0,2,4,9,（）, 1-1-2+9-0 8 0 0 0 3 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 5 0 0 6 0 0 1 0 0 0 4 9 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 7 0 9 0 0 5 0 0 2 4 0 8 0 0 0 0 0 计算行列式|5 -2 0 0 0| 4 -1 0 0 0| 0 0 2 6 5| 0 0 1 3 5| 0 0 -2 7 9| 线性方程组,矩阵-1 4 1 0 4 0 0 4 2 0 3 1 怎么化简算到 -1 4 1 0 -1 1 0 0 1 0 0 0 数列0 1 2 9/8 1/4 怎么解 数列1,4,9,( ),1,0 计算五阶行列式|4 8 6 0 9| |1 -1 3 0 2| |0 4 1 -2 3| |5 -3 0 0 0| |2 0 0 0 0|.|4 8 6 0 9| |1 -1 3 0 2| |0 4 1 -2 3| |5 -3 0 0 0| |2 0 0 0 0| -7,0,1,2,9,（ 2道数独题目,在线等,急7 4 0 0 6 5 0 1 09 0 0 0 0 0 0 6 00 0 3 9 0 4 0 0 02 0 0 0 0 0 0 4 06 0 4 0 0 0 1 0 70 9 0 0 0 0 0 0 30 0 0 3 0 5 6 0 00 1 0 0 0 0 0 0 80 7 0 0 2 8 0 5 10 0 0 0 3 0 0 7 43 0 0 0 0 0 5 9 00 0 0 8 0 9 0 0 20 7 0 5 0 0 9 线性代数矩阵化简|0 3 -6 4 9||1 2 -1 3 1||2 3 0 3 -1||1 -4 5 -9 -7|这玩意,是怎么化成|1 0 0 0 0 ||0 1 0 0 -1/3||0 0 1 0 -3/5||0 0 0 1 0 | 用降阶法求四阶行列式 2 1 -5 8,1 -3 0 9,0 2 -1 -5 ,1 4 -7 0 . 行列式[2 1 -5 8 1 -3 0 9 0 2 -1 -5 1 4 -7 0] 怎么求 .追问2 1 -5 8 1 -3 0 9 0 2 -1 -5 1 4 -7 0 行列式怎么求 81方格如何填写0 0 4 0 9 0 8 0 0 0 3 0 5 0 0 0 0 4 0 9 5 4 0 0 3 0 0 7 0 0 2 0 0 0 8 1 4 8 0 0 5 0 0 0 0 0 0 6 1 0 0 0 0 0 5 0 0 0 2 7 1 0 0 1 0 8 0 0 0 0 0 6 0 6 0 0 0 0 9 0 0 请在“0”处填写1-9数字让小的九方格和大的九方格 英语翻译#include int map[9][9]={0,0,3,8,1,0,0,0,9,5,0,0,4,0,0,0,8,0,0,6,0,9,0,0,1,0,0,0,0,8,0,3,0,0,0,6,0,0,0,0,0,0,0,0,0,9,0,0,6,0,0,5,0,0,0,0,6,0,0,9,0,1,0,0,1,0,0,0,5,0,0,4,2,0,0,0,4,8,7,0,0}; void display() { int i; int j; for(i=0;i java 电话正则表达式^(0[0-9]{2,3}-)?([2-9][0-9]{6,7})+(-[0-9]{1,4})?$(-[0-9]{1,4}),这个为什么前面有“-”? java 电话正则表达式：^(0[0-9]{2,3}-)?([2-9][0-9]{6,7})+(-[0-9]{1,4})?$(-[0-9]{1,4}),这个为什么前面有“-”?