设分块实对称矩阵 [tex=7.214x2.786]Kz/o07mNehCgwSeK1E3mwPLwwc5QkJSWRsp6GiZ0lXp1tzGiTyEqcWXJGjw0cyxwldE6HtmGI9kWEuoLfJ0lqVxmqug2hVlDusJT5blD4gw=[/tex], 其中 [tex=2.0x1.214]+hJWInEjZxEp+ROBrtaQZg==[/tex] 都可逆, 求证: [tex=21.143x3.5]Ck4j1YFlvVH5wCAykOEMi9cqHKFnbc5zfcQJ8wxjo94Y0oiIakz5hF566bfgBVfbMbfMf0WQNNg6z5IqRPYBS/+Cwwhr0fun6+2vtSGMG5Ggh8nuzSig3x9Eo9q81MOl1oTQlDb8A1Bng655nJGbfWPIdcZaKZDk8pICzAJ3HQN9b+bIYTXR3v7vgDITekShm3qXmT/pUcZqfXV0y4ICpCgWTp89ZLRjPH4sZn71Uf+ieZzGgAoJkFSYdElA1uQzC2QHSdnrgHivXtknwmUWhJJUfAzcAzmgyr8Q/cl7WF2b2Bhc6YLmNB5nNRHJT3tp[/tex]
举一反三
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 输出九九乘法表。 1 2 3 4 5 6 7 8 9 --------------------------------------------------------------------- 1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81
- 【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背
- 下面语句的输出结果是？range(len('HelloWorld')) A: [1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11] B: 11 C: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] D: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]