设[tex=8.571x3.643]QN0fTQbn6M33pU3gx/S2shFzvXJob3IOOSqx/0F5eptQdScWfNGb/CM2mlVlHvfqqrFOPhpwUeQ7M7+y642m6wfmIKXLA9fwQ0KfKDhWyIkQfeschdstAcvykNwy6EK5[/tex]，[tex=7.786x3.5]DgXZT9CtCPAglTYwc4pEdezo1yshOnApMrIfQcSakMB+4lRpksum5uptPJN2EGUOOvycnud/beaXtNnm6RNb8F23SgJGiqv0Sw+9DkRBgtbJtQB4VgZFohOrvM4Xi5wT[/tex]，[tex=2.429x1.0]VULeB2wFcRgCCQAbeuJaMQ==[/tex]为未知矩阵，且满足：[tex=3.143x1.0]cSxn/qonRa2B1vU6HLSwrg==[/tex] .（1) 求逆矩阵[tex=1.714x1.214]ehC1Fy05fIHTeRCJHyodYA==[/tex]; (2) 解矩阵方程[tex=3.143x1.0]mbUp6n8y29wO+KAaTxzJKw==[/tex] .
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}
- >>>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']
- 求解下列矩阵对策,其中赢得矩阵 [tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex] 为$\left[\begin{array}{llll}2 & 7 & 2 & 1 \\ 2 & 2 & 3 & 4 \\ 3 & 5 & 4 & 4 \\ 2 & 3 & 1 & 6\end{array}\right]$
- 设[tex=9.357x3.643]QN0fTQbn6M33pU3gx/S2shFzvXJob3IOOSqx/0F5epuU662GpcBEF5cu61RENz4uyutLiD2e70XVgXM6ptliBx2TkKz4IlHMjYGYQXDVqkmm4eBMmGssz7bFOofj3lVX[/tex]，[tex=7.714x2.786]DgXZT9CtCPAglTYwc4pEdcNlcnUIF+BrRKWBao1p88XOv8dvbR6O1cAN14sUaO/Wcb15HFrZpDe07VNdgft9gc8CQeFx1/vusTp1t8fBWcI=[/tex]满足矩阵方程[tex=3.143x1.0]XnDGp2Hw+MpCu8i/Zy+ELg==[/tex](1) 求[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]的逆矩阵[tex=1.714x1.214]U68gBJ5WJ348ks0iIqWsqQ==[/tex] ;(2)求[tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex].
- 【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=