lim(7-1/n)=?是不是可以把7和1/n单独分开看,就是lim(an)=7,lim(bn)=lim(1/n)=0,lim(an-bn) =lim(7-1/n)=7,或者lim(bn)=lim(-1/n)=0,那么lim(an+bn)=lim(7+(-1/n))=lim(7-1/n)=7所以lim(7-1/n)
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![lim(7-1/n)=?是不是可以把7和1/n单独分开看,就是lim(an)=7,lim(bn)=lim(1/n)=0,lim(an-bn) =lim(7-1/n)=7,或者lim(bn)=lim(-1/n)=0,那么lim(an+bn)=lim(7+(-1/n))=lim(7-1/n)=7所以lim(7-1/n)](/uploads/image/z/8580271-31-1.jpg?t=lim%EF%BC%887-1%2Fn%EF%BC%89%3D%3F%E6%98%AF%E4%B8%8D%E6%98%AF%E5%8F%AF%E4%BB%A5%E6%8A%8A7%E5%92%8C1%2Fn%E5%8D%95%E7%8B%AC%E5%88%86%E5%BC%80%E7%9C%8B%2C%E5%B0%B1%E6%98%AFlim%EF%BC%88an%EF%BC%89%3D7%2Clim%EF%BC%88bn%EF%BC%89%3Dlim%EF%BC%881%2Fn%EF%BC%89%3D0%2Clim%EF%BC%88an-bn%EF%BC%89+%3Dlim%EF%BC%887-1%2Fn%EF%BC%89%3D7%2C%E6%88%96%E8%80%85lim%EF%BC%88bn%EF%BC%89%3Dlim%EF%BC%88-1%2Fn%EF%BC%89%3D0%2C%E9%82%A3%E4%B9%88lim%EF%BC%88an%2Bbn%EF%BC%89%3Dlim%EF%BC%887%2B%EF%BC%88-1%2Fn%EF%BC%89%EF%BC%89%3Dlim%EF%BC%887-1%2Fn%EF%BC%89%3D7%E6%89%80%E4%BB%A5lim%EF%BC%887-1%2Fn%EF%BC%89)
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