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单选题 已知矩阵 
,
,计算3A-4B= ( )
A. 
B. 
C. 
D. 
学科：大学数学实验
时间：2023-05-07 11:18:03
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题目1单选题
已知矩阵 <img src="https://tihai-oss-cloud.itihey.com/img/bdb0ad01a9870a48549c5c32c0edb7e6.jpg">,<img src="https://tihai-oss-cloud.itihey.com/img/555a32b4530aa2c2bbea74af0729760d.jpg"> ,计算AB-E= ( )A. <img src="https://tihai-oss-cloud.itihey.com/img/23df65534fae8d53d55c2c89dc56c6ab.jpg">B. <img src="https://tihai-oss-cloud.itihey.com/img/66bb36d5b282652daa1a7f60196c128f.jpg">C. <img src="https://tihai-oss-cloud.itihey.com/img/df4203d40eda148c94dfca33a7287b1e.jpg">D. <img src="https://tihai-oss-cloud.itihey.com/img/0cbcb873ad9c441299f43b54a3f8dbf1.jpg">
题目2单选题
已知矩阵<img src="https://tihai-oss-cloud.itihey.com/img/36d1af691b5ef22fea0b9b7c47d09031.webp"> ,<img src="https://tihai-oss-cloud.itihey.com/img/5b0605234c16edaa9a806ff6f3ef66fc.webp"> ,计算4AB+3B= ( )A. <img src="https://tihai-oss-cloud.itihey.com/img/35c804b476dc29f25ccf616bb51b0be9.webp">B. <img src="https://tihai-oss-cloud.itihey.com/img/de72d5ebb2cffac4a09558f23b9dc54a.webp">C. <img src="https://tihai-oss-cloud.itihey.com/img/53b89b7f9dfe630b9f64423e4b7cdf22.webp">D. <img src="https://tihai-oss-cloud.itihey.com/img/999a71d045f39f1a611a8241d2c8bb3b.webp">
题目3单选题
<img src="https://tihai-oss-cloud.itihey.com/img/9ba5a45cb79384f5b4a152b62f5c6c62.webp"> ( )A. 9B. 10C. 11D. 12
题目4单选题
<img src="https://tihai-oss-cloud.itihey.com/img/72aab6cb48e987d705e1820d85c9fccc.webp">=( )A. 3/5B. 0C. 1D. INF
题目5单选题
已知矩阵 <img src="https://tihai-oss-cloud.itihey.com/img/07878ba70fff2bff9562ee906af7c402.webp"> ,<img src="https://tihai-oss-cloud.itihey.com/img/243484b6ad0b5997efea7516722fcdd9.webp"> ,计算3A-4B= ( )A. <img src="https://tihai-oss-cloud.itihey.com/img/4de37e3425c7acdafd79b6b9e92db16f.webp">B. <img src="https://tihai-oss-cloud.itihey.com/img/5aaef1f3c36ecd8ffbf6eba5bd1e54b2.webp">C. <img src="https://tihai-oss-cloud.itihey.com/img/c83ea5ad3d9539af6aa25f31909a2632.webp">D. <img src="https://tihai-oss-cloud.itihey.com/img/4fc58cf85131f64aab8caa35a9fd16da.webp">
题目6单选题
<img src="https://tihai-oss-cloud.itihey.com/img/035cbdae5821fe2a7dff2492cdf7c403.webp">=( )A. 0B. 1C. -1D. INF
题目7单选题
<img src="https://tihai-oss-cloud.itihey.com/img/f73aff957d1ed581231b8181f1742364.webp">=( )A. 1B. -1C. 0D. INF
题目8单选题
设A= <img src="https://tihai-oss-cloud.itihey.com/img/012d36f15a83c0d2ca68b417a10c2a47.webp">,则代数余子式<img src="https://tihai-oss-cloud.itihey.com/img/95edfe1e36a1dc00efecd342c4323f09.webp"> = ( )A. 78B. -78C. 4D. -4
题目9单选题
4<img src="https://tihai-oss-cloud.itihey.com/img/447f363a1a0d010fa671224c9acba4dc.webp"> ( )A. <img src="https://tihai-oss-cloud.itihey.com/img/2160f8304c19c1b555cad2173acdb89c.webp">B. <img src="https://tihai-oss-cloud.itihey.com/img/7e62b81f9fcfe135a8e7388b048b04f6.webp">C. <img src="https://tihai-oss-cloud.itihey.com/img/208c661dd144d30b64759c86ae143381.webp">D. <img src="https://tihai-oss-cloud.itihey.com/img/57f2c5b8ee24ad443c4a313aa5629913.webp">
题目10单选题
若<img src="https://tihai-oss-cloud.itihey.com/img/e236c2fa3ef4c83116a6f11408b310d4.webp">,则<img src="https://tihai-oss-cloud.itihey.com/img/094c71905d9d522fe43d22d04eaf9970.webp"> ( )A. -3B. 3C. 0D. 6
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