匿名用户 2021-10-08 21:58 数学类Mathematics

Strives for the curve y =*sinx ( 20)the area of the graph between the x axis.

匿名用户 2021-10-08 21:57 数学类Mathematics

Let a and b be real numbers, and function=2 +ax2 by2 in the directional derivative at point(3,4), the directional deriva... 查看全部

匿名用户 2021-10-08 21:57 数学类Mathematics

Let the function y() be a particular solution of the differential equation y'+xy =e 2 satisfying the condition y() =0.(1... 查看全部

匿名用户 2021-10-08 21:56 数学类Mathematics

x Let the probability density of the random variable X be f(x)=20E(X)-1}

匿名用户 2021-10-08 21:56 数学类Mathematics

Leta=(a1,a2,a3) be the third-order- matrix.fa1,a2,a3 are linearly independent,and a3=-a1 +2a2, compute the general solut... 查看全部

匿名用户 2021-10-08 21:55 数学类Mathematics

Let's set to the surface x +y +4z =(z >0)of the upper side, to calculate√4-x2-4z2dxd

匿名用户 2021-10-08 21:55 数学类Mathematics

Compute the sum function S(x) of the power series(-1)n=0(2n)in(0,+∞o∑

匿名用户 2021-10-08 21:54 数学类Mathematics

Compute the particular solution y of the differential equation 2yy-y2-2=0 satisfying the condition y()= 1.

匿名用户 2021-10-08 21:54 数学类Mathematics

Let the function of be differentiable,z=sin y-sinx)+xy, to calculate10z10z+ cos x ox cos y dy'

匿名用户 2021-10-08 21:53 数学类Mathematics

As you can see, there are three planes intersecting in pairs, parallel to each other, and their equations+any+az=d(i=1,2... 查看全部