Compute the surface integral =xzdydz +2zydzdx +3xydxdy. where is the surface=1-x2-(0≤z≤1)
Find the maximum and minimum values of the functionxy)=x2+2y2-xy2 in the regionD={(x,y)|x2+y2≤4,y≥0}
What is the probability that the absolute value of the difference between two random numbers in the interval(0,1) is les... 查看全部
01000010A What is the rank of A300010000
A curved surface 2: x+ z=1, To calculate
The general solution of second-order nonhomogeneous linear differential equation with constant coefficients y"-4y'+3y=2e... 查看全部
Let f(u,) be a differentiable binary function, ,z =f(x',), and computeax
If the random variables (,) are normally distributed in two dimensions and X is not correlated, fx() and fY(y represent ... 查看全部
Someone fires independently and repeatedly at the same target, with a probability of hitting the target per shot p(