化简 [a^2-1]/[a-1]-√[a^2-2a+1]/a^2-a]化简后带入a=1/[2+√3]
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/07 19:34:51
化简 [a^2-1]/[a-1]-√[a^2-2a+1]/a^2-a]化简后带入a=1/[2+√3]
化简 [a^2-1]/[a-1]-√[a^2-2a+1]/a^2-a]
化简后带入a=1/[2+√3]
化简 [a^2-1]/[a-1]-√[a^2-2a+1]/a^2-a]化简后带入a=1/[2+√3]
a=1/[2+√3]=(2-√3)/(2+√3)(2-√3)=2-√3
1/a=2+√3
a-1<0
于是
原式
=(a+1)(a-1)/(a-1)-√(a-1)²/[a(a-1)]
=(a+1)+(a-1)/[a(a-1)]
=a+1+1/a
=2-√3+1+(2+√3)
=3-√3+2+√3
=5
[a/(a-1)+a/(a+2)](a+2)/(2a平方+3a+1)化简
化简:(1-a)^2/a-1 (a
化简2a(a-1/2)+a
化简:-a+a/a+1
a*a*a*a+a*a+1/a*a+a+1 化简
(a 1)(a 2)(a 3)(a
(a+2)(a+1)-a(a-3)
化简:a^4-(1-a)(1+a)(1+a^2)
化简2a-(a-1)+a²-1/a+1
化简:1/(a+1)×a/(a²+2a+1)
化简1/(a+b)√(b/a+a/b+2)
化简a(a+2)-(a-1)(a+1)
化简(a+1)(a-2)/(a+2)(a-2)+3
(a+2)(a-2)-a(a+1)化简
化简a²-2a+1/a-a²
化简 3a-[5a-(a+2)+a]-1
化简:2(a+1)-a
大家帮忙解方程 化简a(a-1)(a+2)-(a+2)a(a-1)(a+2)-(a+2)化简