匿名用户 2021-10-08 23:06 数学类Mathematics

Let vector group. =(1, 2, 1),a2 =(1, 3 2), a, =(1,, 3)' is a basis for R', B= (1,1,1), and the coordinates with respect ... 查看全部

匿名用户 2021-10-08 23:18 数学类Mathematics

Calculate= y2 dxdy, where D is the first quadrant bounded by x+= 1 and2+y x+y=2 and two coordinate axes.

匿名用户 2021-10-08 23:18 数学类Mathematics

Let the line y ax+ b be the tangent of the curve y In( +2). If the area of the graph enclosed by y ax +b, x 0, 4 and y I... 查看全部

匿名用户 2021-10-08 23:17 数学类Mathematics

Let4x+2(1-x)-6y=e3 dx (1)Transform t=vx to transform the original equation into the differential equation of Y with resp... 查看全部

匿名用户 2021-10-08 23:16 数学类Mathematics

If f(x) is continuous and f()=0 and f()=2, find the limit0 dte-(-)2 du Jm0 f(x-t)dt0

匿名用户 2021-10-08 23:16 数学类Mathematics

Set for3 order real symmetric matrix,a1=(m,-m,1) is the solution of equations AX 0, a2 =(m, 1,1-m)'is equations solution... 查看全部

匿名用户 2021-10-08 23:16 数学类Mathematics

x(t-sint) Let region D be defined by the cycloid L:(0≤t≤2n) and the X--axis, to calculate 2xydxdy.

匿名用户 2021-10-08 23:15 数学类Mathematics

Let z(xy, y2,), where is continuously partial, to calculate dz dx

匿名用户 2021-10-08 23:15 数学类Mathematics

Calculate the oblique asymptote of the curve L: y= vx2-4x+6+x.

匿名用户 2021-10-08 23:14 数学类Mathematics

esint-x+1=0 Let's say y=(x) is equal to t+ In (1 +) du' to calculate dy= Jo dt