(a-1)[1-(a+1)÷(a-1/a)]
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(a-1)[1-(a+1)÷(a-1/a)]
(a-1)[1-(a+1)÷(a-1/a)]
(a-1)[1-(a+1)÷(a-1/a)]
(a-1)[1-(a+1)÷(a-1/a)]
= (a-1)[1-(a+1)×a/(a^-1)]
=a-1-a(分配律)
=-1.
原式=(a-1)【1-(a+1)x(a/a-1)】
=a-1-a(a+1)
=a-1-a2-a
-(a2+1)
=(a-1)-(a+1)(a/a-1)(a-1)
=a-1-a的二次方-a
= -a的二次方-1
(a-1)[1-(a+1)÷(a-1/a)] = (a-1)[1-(a+1)÷(a^2-1/a)] 倒除为乘 =(a-1)[1-(a+1)*a/(a+1)(a-1)] 化简,约分 =(a-1)(1-a/a-1) =(a-1)(a-1-a/a-1) =-(a-1) 1/a-1 =-1 表示一个一个符号复制粘贴好痛苦= =、
A-A=0 A+A=?A÷A=1 A×A=?(A+A)+(A-A)+(AxA+A÷A)=100 A=?
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a a=[ ]
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(a-1)[1-(a+1)÷(a-1/a)]
(a-1)[1-(a+1)÷(a-1/a)]
计算a-1/a÷(a-1/a)=
怎么计算(a+1)(a*a+1)a*a*a*a+1).a(100)+1)
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