Let f(x)=(2+x2)In(1+2x), to calculate f("().
If A is A third-order nonzero matrix and A =0, calculate the number of linearly independent solution vectors in the fund... 查看全部
Let A be A third-order matrix whose eigenvalues are 1=2=1, A3=2, the corresponding linearly independent eigenvectors are... 查看全部
Let region D be bounded by x +y =1 and r=1, y=1, to calculate I= 2+xydxdy x+y
Let all second partial derivatives of the function u(xz, yz,) be continuous, to calculate a u axay.
Let be the region bounded by y= X, X=0.y=1, to calculate arctanydx dy
When x,(nx) =to calculate xf'().
Compute the tangent equation of the curve at t=0.