匿名用户 2021-08-16 19:31 数学类Mathematics

The function f(x) =x-1(0X2) is expanded as a cosine series of period 4.

匿名用户 2021-08-16 19:29 数学类Mathematics

Calculate the surface integra l is the part of the cone Z=inside the cylinder .

匿名用户 2021-08-16 19:19 数学类Mathematics

Let the function f(x) be continuous on the interval [0,1] and let  

匿名用户 2021-08-16 19:05 数学类Mathematics

 Let the square matrix A and B of 3rd order satisfy the relation  

匿名用户 2021-08-16 19:02 数学类Mathematics

Let A be a square matrix of order n, 2, 4, ……, 2n is the n eigenvalues of A, E is the identity matrix of order n,calcula... 查看全部

匿名用户 2021-08-16 19:00 数学类Mathematics

Given that the random variable (X,Y) obeys the two-dimensional normal distribution, and x and Y obey the normal distribu... 查看全部

匿名用户 2021-08-16 18:57 数学类Mathematics

Let A be A nonzero square matrix of order n,A* is the adjoint matrix of A, 

匿名用户 2021-08-16 18:52 数学类Mathematics

Four yuan a homogeneous linear system of equations (Ⅰ) to    , and one (Ⅱ) the general solution of homogeneous linear eq... 查看全部

匿名用户 2021-08-16 18:47 数学类Mathematics

 F (x) is the second order continuous differentiable, f (0) = 0, f '(0) = 1, and for a total differential equation, f (x... 查看全部