设[tex=0.786x1.0]kEam2pLJe4uAYVdcny2W5g==[/tex],[tex=0.786x1.0]EsJDtGYVBcAkNM+hi9jDJg==[/tex]为同阶可逆矩阵,且[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]是对称矩阵,则下列等式不成立的是
未知类型:{'options': ['[tex=8.0x1.714]uQrl19SXoCkoXiFriBTQpbj91CrUpLX4I/tUFRkcidXMLCBMmu39lDac7+w9o6pgskyEWE6ev6Im2neCzd/vcw==[/tex]', '[tex=5.357x1.5]QIzueG8iuMNjKCjuYgPCf1UODz2jlBFXEYTqmQc+f3A=[/tex]', '[tex=9.786x1.714]DZibnSx1UZAJpgH6ywsmT4b+6dmekhgyknuZruhNPohzZ11bjlchugQTEV33wDG++gNTu8f8rXhe4KQVHqPvUP7Uw7JcKXyM91qlqUe9vwQ=[/tex]', '[tex=9.643x1.714]DZibnSx1UZAJpgH6ywsmT2ZG/HhD2S5uLghe8miFaMdGhHjBK6nuflap/uzrV+i9En7FlNEQi7+wVhPo4XSWZsXrHDidUHBEPcchZT8k8r0=[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=8.0x1.714]uQrl19SXoCkoXiFriBTQpbj91CrUpLX4I/tUFRkcidXMLCBMmu39lDac7+w9o6pgskyEWE6ev6Im2neCzd/vcw==[/tex]', '[tex=5.357x1.5]QIzueG8iuMNjKCjuYgPCf1UODz2jlBFXEYTqmQc+f3A=[/tex]', '[tex=9.786x1.714]DZibnSx1UZAJpgH6ywsmT4b+6dmekhgyknuZruhNPohzZ11bjlchugQTEV33wDG++gNTu8f8rXhe4KQVHqPvUP7Uw7JcKXyM91qlqUe9vwQ=[/tex]', '[tex=9.643x1.714]DZibnSx1UZAJpgH6ywsmT2ZG/HhD2S5uLghe8miFaMdGhHjBK6nuflap/uzrV+i9En7FlNEQi7+wVhPo4XSWZsXrHDidUHBEPcchZT8k8r0=[/tex]'], 'type': 102}
举一反三
- 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}
- 【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=
- 设[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]是 3 阶矩阵,且[tex=2.643x1.357]h0pLE8vvleI3SS/lZLfCsw==[/tex],则[tex=4.143x1.357]TzVoItsLVWI00YVI4rvLQQ==[/tex]( ). 未知类型:{'options': ['2', '-2', '8', '-8'], 'type': 102}
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- 已知a=[1 2 3; 4 5 6; 7 8 9],执行命令:a([3,1],:)=a([1,3],:),a将变为( )。 A: [4 5 6;4 5 6;4 5 6] B: [7 8 9;4 5 6;1 2 3] C: [2 2 2;5 5 5;8 8 8] D: [3 2 1;6 5 4;9 8 7]