β=510/19z=x ysk10k^6-10>=10k>=5

β=510/19z=x ysk10k^6-10>=10k>=5 解方程 x(x+y+z)=6 y(x+y+z)=12 z(x+y+z)=18 解方程组{x(x+y+z)=6,y(x+y+z)=12,z(x+y+z)=18 解方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 方程组：{x+y-z=6,x+z=16,x-y+2z=17 matlab中Index exceeds matrix dimensions.错误function [x,m]=g1(x)syms z k m x hz(1)=30;z(2)=68;z(3)=75;z(4)=82;z(5)=82;z(6)=77;z(7)=68;z(8)=68;z(9)=58;z(10)=51;z(11)=50;z(12)=41;z(13)=38;z(14)=35;z(15)=28;z(16)=25;z(17)=18;z(18)=15;z(19)=12;z(20)=1 β=510/19z=x y10 x 5当x＞-5时 (x+y-z)(x-y+z)= f(x,y,z)=In{[x^α+z^(1-α-β)]/y^β}+x/z+(z/x)^β,求 ∂f(x,y,z)/∂y 已知x、y、z满足方程组：x+y-z=6；y+z-x=2；z+x-y=0 求x、y、z的值 已知X.Y.Z满足方程组,X+y-Z=6y+z-x=2z+x-y=0求X.Y.Z的值 x+y+z=6 x+2y+3z=14 y+1=z 已知x,y,z满足方程组｛x+y-z=6{y+z-x=2{z+x_y=0,求x,y,z的值 3x-y+z=4,2z+3y-z=12,x+y+z=6的解 z=x X+Y+Z=? x/y=(x+z)/(y+z)y/z=(x+y)/(x+z) 已知 x/(y+z)+y/(z+x)+z/(x+y)=1求 (x*x)/(y+z)+(y*y)/(x+z)+(z*z)/(x+y)=?