18、下列矩阵不可逆的是( )
(1.0)
A. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/2c79950d28016a72597b4f4f76fa6919.png" \* MERGEFORMATINET
B. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/8309567273fa234e9387c093ebe78eeb.png" \* MERGEFORMATINET
C. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/55ac4c0e2b3f16262d05e475cb4a70bd.png" \* MERGEFORMATINET
D. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/35fc36002121149f45d835d016229bae.png" \* MERGEFORMATINET
https://www.shititong.cn/cha-kan/shiti/0005b877-74f1-3890-c0ce-60519723ce00.html
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9
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-9dd8-c0ce-60519723ce01.html
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34、设A是 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/111984" \* MERGEFORMATINET
矩阵,如果 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/312248" \* MERGEFORMATINET
,则( )
(1.0)
A. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/22036fe43827ed0db23d177e31c3a2b4.png" \* MERGEFORMATINET
B. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/b2438085c7f52fc89bd82d931934be3d.png" \* MERGEFORMATINET
C. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/5bfacced11915d1e48dda63d54b5fc24.png" \* MERGEFORMATINET
D. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/33a779319651bcd1abbd76889f388a9f.png" \* MERGEFORMATINET
https://www.shititong.cn/cha-kan/shiti/0005b877-74f2-26d8-c0ce-60519723ce00.html
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16、用邻接矩阵存储图,占用存储空间数与图中顶点个数________关,与边数________关。
( )
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-99f0-c0ce-60519723ce09.html
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71、根据历年气象统计资料,某地四月份吹东风的概率为9/30,下雨的概率为11/30,既吹东风又下雨的概率为8/30.则在吹东风的条件下下雨的概率为( )
(1.0)
A. 9/11
B. 8/11
C. 2/5
D. 8/9
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-3c30-c0ce-60519723ce00.html
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9、 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/2bf6e4a9478fe3e1395c7e05158b90ee.png" \* MERGEFORMATINET
( )
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-7e98-c0ce-60519723ce00.html
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19、下面不是普通坐标(2,3)的齐次坐标的是( )
(1.0)
A. (2,3,1)
B. (-2,-3,1)
C. (-2,-3,-1)
D. (4,6,2)
https://www.shititong.cn/cha-kan/shiti/0005b877-74f1-4c18-c0ce-60519723ce00.html
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3
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-8e38-c0ce-60519723ce01.html
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10
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-a1c0-c0ce-60519723ce01.html
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5
第9空:
https://www.shititong.cn/cha-kan/shiti/0005b877-74f3-99f0-c0ce-60519723ce07.html
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