x/2=y/3=z/(1/2),则(x+3y-z)/(2x-y+z)的值是多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/02 07:53:55
x)7707y1
mJ*M}
J*Z6y6c%nhTON;*jkT5R5eaRmV5YVW$ف UhD
若x+y+z=3y=2z,则x/x+y+z=?
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
若x:y:z=3:2:1,则x+2y-z/2x-y+z=
试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y)
已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z
X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z
x+y+z=6 x+2y+3z=14 y+1=z
若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值
分式加减的几道题目求速度1 .(x+y)²/(x-z)(y-z) - (y+z)²/(x-z)(y-z) = 2.2x+3y/x-y+2y/y-x-3y/x-y=
matlab解对数方程组[x,y,z]=solve('0.29744*x/(3+0.1*x+y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)))^2','0.79*x/(3+0.1*y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.1*y+z)))^2','1.25*x/(3+0.1*z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.*1y+z)*(3+z)/
证明 :x/(y+z)+y/(z+x)+z/(x+y)>=3/2其中 x,y,z>0
x/2=y/3=z/4,则x+2y-z/z=?
如果,根号x-3+| y-2 |+z^2=2z-1 求 (x+z)^y
已知x+2y-3z=0,5x-6y+7z=1;则x:y:z=?把“5z-6y+7z=1”改成“5x-6y+7z=0”
x/2=y/3=z/5 x+3y-z/x-3y+z
x+2y=3x+2z=4y+z 求x:y:z
x+y/2=z+x/3=y+z/4 x+y+z=27