(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 10:57:14
(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)
(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75
(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75
(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75
X=42/51X=23/8
(1.7-2x)/0.3=x/0.7-1,(3+0.2x)/0.2-(0.2+0.03x)/0.01=0.75
1/2x-1/4(x-1)=2/3(x-1)x - x-1 / 3 = 1 - x+3 / 5x / 0.7 - 1.7-x / 0.3 = 1
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
1.7-2x/0.3=x/0.7-1 解方程
解方程x/0.7-(1.7-2x)/0.3=1
0.3分之(1.7-2x)=0.7分之(x)-1
0.7分之x-0.3分之1.7-2x=1
0.3分之1.7-2x=0.7分之x-1
x/0.7-1.7-2x/0.3=1
x/0.7-(1.7-2x)/0.3=1
1.7-2x/0.3=x/0.7-1
求解x/0.7-1.7-2x/0.3=1
设随机变量X的分布函数为F(X)=0.3Φ(x)+0.7Φ((x-1)/2),Φ(x)为标准正态分布函数,求E(X)
解方程:x(x-1)+x(2+x)=2x(x-2)
(x)-2x·x-x-2x+1=0求x的值,
(x-1)/0.3-(x+7)/0.5=1.7 x/0.7-(0.17-0.7x)/0.
0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6(x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5)÷3=1.7 x=5(x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x=
先化简再求值(x-1/x-x-2/x+1)/(2x²-x/x²+2x+1)且x²-x-1 =0