syms x y zI1= int(int(int(2*z,z,1-x-y,x+y-1),y,0,1-x),x,0,1)syms r phi zI=int(r*r*cos(phi),z,r,sqrt(2-r*r)) I3=int(int(I,r,0,1),phi,0,2*pi)syms x y zI=int(z,z,0,2-x/3-2*y/3)I4=int(int(I,y,-sqrt(1-x*x),sqrt(1-x*x)),x,-1,1)syms phi r zI6=int(int(int(z,z,-sqrt(r*r),sqrt(r*r)),r,0,1),phi,0,2*pi)syms p phi tetaI7=int(int(int(p*sin(phi)*sin(teta)*p*p*sin(teta),p,0,2*cos(teta)),teta,0,pi),phi,-pi/2,pi/2)syms p phi tetaI9=int(int(int(p^2*(sin(teta))^2*p^2*sin(teta),p,0,2*cos(teta)),teta,0,pi/4),phi,0,2*pi)syms phi r zI10=int(int(int(3*r,z,r^2+1,0),r,0,1),phi,-pi/2,pi/2)syms phi teta pI11=int(int(int(p^2*sin(teta),p,0,1),teta,0,pi),phi,0,pi/2)syms phi teta pI12=int(int(int(p^2*sin(teta),p,0,2*cos(teta)),teta,0,pi/4),phi,0,2*pi)syms phi rI13=int(int(int(r*r*cos(phi),z,sqrt(2-r^2),r),r,0,1),phi,0,2*pi)syms phi rI14=int(int(int(r*r*cos(phi)-2*z,z,sqrt(2-r^2),r),r,0,1),phi,0,2*pi)syms x y zI15=int(int(int(x+y,z,1-x-y,0),y,0,x^2),x,1,2)syms phi r zI16=int(int(int(r^2,z,-r,r),r,0,1),phi,0,2*pi)syms x y zI17=int(int(int(2*y,z,0,-x),y,4-x^2),x,-2,2)syms x y zI18=int(int(int(3,0,2-2*x),y,-x,x),x,0,1)