模拟试卷3
卷面总分:100分
试卷年份:
是否有答案:有
作答时间: 120分钟
设1为3阶实对称矩阵A的2重特征值,则A的属于1的线性无关的特征向量个数为
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已知向量且,求
(1)数k的值;
(2)A10.
设A为3阶矩阵,且|A|=2,则|2A|=__________
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#0 /data/zikao/sites/www.fjzikao.net/www/phpcms/model/get_model.class.php(30): db_mysqli->fetch_next()
#1 /data/zikao/sites/www.fjzikao.net/www/caches/caches_template/default/content/yzb_exam_detail.php(142): get_model->fetch_next()
#2 /data/zikao/sites/www.fjzikao.net/www/phpcms/modules/yzb/exam.php(293): include('/data/zikao/sit...')
#3 /data/zikao/sites/www.fjzikao.net/www/phpcms/libs/classes/application.class.php(31): exam->detail()
#4 /data/zikao/sites/www.fjzikao.net/www/phpcms/libs/classes/application.class.php(19): application->init()
#5 /data/zikao/sites/www.fjzikao.net/www/phpcms/base.php(251): application->__construct()
#6 /data/zikao/sites/www.fjzikao.net/www/phpcms/base.php(153): pc_base::_load_class('application', 'libs/classes', 1)
#7 /data/zikao/sites/www.fjzikao.net/www/phpcms/base.php(135): pc_base::load_sys_class('application')
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