求指导本题解题过程，谢谢您！5.设Ω由曲面 =sqrt ({x)^2+(y)^2}, ^2+(y)^2+(z)^2=2z 围成将,则Ω和三重积分-|||-JJ ((x)^2+(y)^2+(z)^2)dv 化为球面坐标系下三次积分为 ()-|||-(A) (int )_(0)^2pi dtheta (int )_(0)^dfrac (pi {4)}dvarphi (int )_(0)^1(r)^4sin varphi dr; (B) (int )_(0)^2pi dtheta (int )_(0)^dfrac (pi {4)}dvarphi (int )_(0)^rcos varphi (r)^4sin varphi dr;-|||-C) (int )_(0)^2pi dtheta (int )_(0)^dfrac (pi {4)}dvarphi (int )_(0)^rsin varphi (r)^4sin varphi dr; (D) (int )_(0)^2pi dtheta (int )_(0)^dfrac (pi {4)}dvarphi (int )_(0)^2(r)^4sin varphi dr.

求指导本题解题过程，谢谢您！4.∑是 =sqrt ({x)^2+(y)^2}((x)^2+(y)^2leqslant 1) 下侧,则-|||-iint y(z)

求指导本题解题过程，谢谢您！3、计算 iint int ((x)^2+(y)^2)dy, 其中积分区域Ω是由曲面 =(x)^2+(y)^2 及平面 z=4 所围

( A ) = (x,y,z)|{x)^2+(y)^2+(z)^2=(a)^2,zgeqslant 0} ( B ) = (x,y,z)|{x)^2+(y)^

设 ^2+(y)^2+(z)^2-4z=0, 求 dfrac ({a)^2z}(q{x)^2}

3.计算三重积分 iint f((x)^2+(y)^2)dy, 其中Ω是由曲面 ^2+(y)^2=2z 及平面 z=2 所围成的-|||-闭区域.

1.设 ^2+(y)^2+(z)^2-z=0, 求 dfrac ({a)^2z}(a{y)^2}

球面^2+(y)^2+(z)^2+4x+6y+2z+10=0的球心坐标为A.^2+(y)^2+(z)^2+4x+6y+2z+10=0B.^2+(y)^2+(z)

求指导本题解题过程，谢谢您！2.曲线积分 =(int )_(L)^1((x)^2+(y)^2)ds (其中L是圆周: ^2+(y)^2=9 的值为 __ _。求

已知Σ为锥面=sqrt ({x)^2+(y)^2}在柱体=sqrt ({x)^2+(y)^2}内的部分,则曲面积分=sqrt ({x)^2+(y)^2}

设(x,y,z)=(x)^2+(y)^3+z,求(x,y,z)=(x)^2+(y)^3+z,在点(x,y,z)=(x)^2+(y)^3+z,处沿方向(x,y,z