若实数x,y,z满足方程组:xyx+2y=1…(1)yzy+2z=2…(2)zxz+2x=3…(3),则有( )
若实数x,y,z满足方程组:xyx+2y=1…(1)yzy+2z=2…(2)zxz+2x=3…(3),则有( )
若实数x,y,z满足方程组 xy/﹙x+2y﹚=1① yz/﹙y+2z﹚=2② zx/﹙z+2x﹚③ 则
已知实数x,y,z满足:x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,则x+y+z=
己知x,y,z,t满足方程组x+y+z=62x−z+t=−2
解方程组(1)x+y−z=6x−3y+2z=13x+2y−z=4
解方程组x:y=1:5y:z=2:3x+y+z=27.
若实数x、y、z满足2|x−y|+2y+z+z
已知实数x、y、z满足:2x+3y+z=1,则x²+y²+z²的最小值为
已知实数 x y z 满足x+y-z=0 ,3x-y+2z=0 则x :y :z
已知实数X,Y,Z满足条件X-Z-2的绝对值加3X-6Y-7的绝对值+(3Y+3Z-4)的平方=0,则X+3Y-Z=(
2.若实数X,Y,Z满足√X+√(Y-1)+√(Z-2)=1/2(X+Y+Z),求logz(X+Y)的值.
已知实数x,y,z满足(绝对值4x-4y+1)+(1\3根号2y+z)+(z的平方-z+1\4)等于0