设a为常数，则级数<img src='https://img2.soutiyun.com/latex/latex.action' />( )．
设a、b 是两个非零向量,且<img src='https://img2.soutiyun.com/ask/2020-10-29/97283554344948.png' />
设A非奇异，λ<sub>i</sub>是方阵A<sup>T</sup>A的特征值，证明：<img src='https://img2.soutiyun.com/ask/2020-11-27/975337614484347.jpg' />
已知事件A、B满足<img src='https://img2.soutiyun.com/ask/2019-12-25/946136490188197.png' />，则P(A-B)=( )．
1 设A与B分别表示事件“甲、乙二人射中目标”，则<img src='https://img2.soutiyun.com/ask/6126001-6129000/f7f4bb19667be6e4fe7de67ef934aea3.jpg' />表示事件( )．
设A为n阶实矩阵，试证<img src='https://img2.soutiyun.com/ask/2020-11-27/975337127824512.jpg' />
设a+3b⊥7a-5b,a-4b⊥7a-2b,求<img src='https://img2.soutiyun.com/ask/2020-07-31/965053905092976.png' />
设随机事件A在第i次独立试验中发生的概率为p<sub>i</sub>，i=1，2，...，n。m表示事件A在n次试验中发生的次数，则对于任意正数ε{ε＞0}，证明<img src='https://img2.soutiyun.com/ask/2020-12-28/978025287070883.jpg' />
设E为全集，A，B为非空集且B<img src='https://img2.soutiyun.com/latex/latex.action' />A，则空集为 ( )．
设<img src='https://img2.soutiyun.com/latex/latex.action' />则<img src='https://img2.soutiyun.com/latex/latex.action' />=( )．
设<img src='https://img2.soutiyun.com/latex/latex.action' />=( )
设P(A)=a，P(B)=b，P(A+B)=c，则<img src='https://img2.soutiyun.com/latex/latex.action' />为( )
设A、B为任意两事件，且<img src='https://img2.soutiyun.com/ask/2020-03-06/952348543191874.png' />，P(B)＞0，则下列选项必然成立的是( )
设a、b为常数，则反常积分<img src='https://img2.soutiyun.com/shangxueba/ask/18729001-18732000/18731251/2016071616291426579.jpg' />（）
设a≠0,|r|＜1,求<img src='https://img2.soutiyun.com/ask/2020-10-26/972583970755153.png' />
（2011）设3阶矩阵A=<img src='https://img2.soutiyun.com/shangxueba/ask/19008001-19011000/19009882/2015110316062911517.png' />，已知A的伴随矩阵的秩为1，则a=（）
设A={a,b,c},试给出,A上两个不同的关系R<sub>1</sub>和R<sub>2</sub>，使得<img src='https://img2.soutiyun.com/ask/2021-01-06/978776083803018.png' />
若事件A发生必然导致事件B发生，则事件A和B的关系一定是（） A．对立事件 B．互不相容事件<img src='https://img2.soutiyun.com/ask/uploadfile/2730001-2733000/951db6a6281c17a69794636791fd4e8d.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2730001-2733000/717e16ee22e504c8784bbe8a3133e12a.jpg' />
设C为不经过a与-a的正向简单闭曲线，a为不等于零的任何复数，试就a与-a同C的各种不同位置，计算积分<img src='https://img2.soutiyun.com/ask/2020-12-14/976804476359472.jpg' />。
设A，B为随机事件，则<img src='https://img2.soutiyun.com/shangxueba/ask/2022-04/24/213/20220424101858907.png' />=()。
设<img src='https://img2.soutiyun.com/shangxueba/ask/2022-04/24/826/20220424090836513.png' />，则A-B=()。
设L是从A（1，0）到B（-1，2）的线段，则曲线积分<img src='https://img2.soutiyun.com/shangxueba/ask/17670001-17673000/17672554/201510271143115588.jpg' />（x+y）ds等于：（）
设n阶矩阵A满足A<sup>m</sup>=0，m是正整数，试证E-A可逆，且<img src='https://img2.soutiyun.com/ask/2020-11-26/975228984878283.png' />
设A，B为n阶可逆矩阵，E为n阶单位矩阵，求<img src='https://img2.soutiyun.com/ask/2020-10-27/972642814546534.png' />
