(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!还有个(-2)^49+(-2)^48+.+(-2)+1
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![(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!还有个(-2)^49+(-2)^48+.+(-2)+1](/uploads/image/z/104950-46-0.jpg?t=%EF%BC%88a%EF%BC%8D1%EF%BC%89%EF%BC%88a%5E99%2Ba%5E98%2Ba%5E97%2B%E2%80%A6%E2%80%A6%2Ba%5E2%2Ba%2B1%29%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%21%E8%BF%98%E6%9C%89%E4%B8%AA%28-2%29%5E49%2B%28-2%29%5E48%2B.%2B%28-2%29%2B1)
(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!还有个(-2)^49+(-2)^48+.+(-2)+1
(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!
还有个(-2)^49+(-2)^48+.+(-2)+1
(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!还有个(-2)^49+(-2)^48+.+(-2)+1
a^100-1
(a-1)(a^99+a^98+a^97+……+a^2+a+1)简便方法!还有个(-2)^49+(-2)^48+.+(-2)+1
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=[ ]
你能求出(a-1)(a^99+a^98+a^97+……+a^2+a+1)的值吗? 遇到这样的问题,我们可以先思考一下,从简单的情况入手,分别计算下列各式的值.(a-1)(a+1)= (a-1) (a^2+a+1)= (a-1) (a^3+a+1)=试求2^1
(通分) a/a^a^a+3a+2 ,a/a^a+2a+1 ,-1/3a+6
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