定义:a是一个不为1的有理数,我们把1/1-a称为a的差倒数.如:2的差倒数是1/1-2=-1,已知a2是a1的差倒数,a3是a2的差倒数,a4是a3的差倒数,...以此推类,则a2011=( )快呀,明个儿就要交作业啦
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![定义:a是一个不为1的有理数,我们把1/1-a称为a的差倒数.如:2的差倒数是1/1-2=-1,已知a2是a1的差倒数,a3是a2的差倒数,a4是a3的差倒数,...以此推类,则a2011=( )快呀,明个儿就要交作业啦](/uploads/image/z/4317528-48-8.jpg?t=%E5%AE%9A%E4%B9%89%EF%BC%9Aa%E6%98%AF%E4%B8%80%E4%B8%AA%E4%B8%8D%E4%B8%BA1%E7%9A%84%E6%9C%89%E7%90%86%E6%95%B0%2C%E6%88%91%E4%BB%AC%E6%8A%8A1%2F1-a%E7%A7%B0%E4%B8%BAa%E7%9A%84%E5%B7%AE%E5%80%92%E6%95%B0.%E5%A6%82%EF%BC%9A2%E7%9A%84%E5%B7%AE%E5%80%92%E6%95%B0%E6%98%AF1%2F1-2%3D-1%2C%E5%B7%B2%E7%9F%A5a2%E6%98%AFa1%E7%9A%84%E5%B7%AE%E5%80%92%E6%95%B0%2Ca3%E6%98%AFa2%E7%9A%84%E5%B7%AE%E5%80%92%E6%95%B0%2Ca4%E6%98%AFa3%E7%9A%84%E5%B7%AE%E5%80%92%E6%95%B0%2C...%E4%BB%A5%E6%AD%A4%E6%8E%A8%E7%B1%BB%2C%E5%88%99a2011%3D%EF%BC%88+%EF%BC%89%E5%BF%AB%E5%91%80%2C%E6%98%8E%E4%B8%AA%E5%84%BF%E5%B0%B1%E8%A6%81%E4%BA%A4%E4%BD%9C%E4%B8%9A%E5%95%A6)
定义:a是一个不为1的有理数,我们把1/1-a称为a的差倒数.如:2的差倒数是1/1-2=-1,已知a2是a1的差倒数,a3是a2的差倒数,a4是a3的差倒数,...以此推类,则a2011=( )快呀,明个儿就要交作业啦
定义:a是一个不为1的有理数,我们把1/1-a称为a的差倒数.如:2的差倒数是1/1-2=-1,已知a2是a1的差倒数,
a3是a2的差倒数,a4是a3的差倒数,...以此推类,则a2011=( )
快呀,明个儿就要交作业啦
定义:a是一个不为1的有理数,我们把1/1-a称为a的差倒数.如:2的差倒数是1/1-2=-1,已知a2是a1的差倒数,a3是a2的差倒数,a4是a3的差倒数,...以此推类,则a2011=( )快呀,明个儿就要交作业啦
a2=1/(1-a1),a3=1/(1-a2)=1/[1-1/(1-a1)]=1-1/a1,
a4=1/(1-a3)=1/(1-1+1/a1)=a1,所以a4=a1,所以周期是3,而2011=370*3+1,
所以a2011=a1