1/2+1/4+1/6+1/8+.1/n
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1/2+1/4+1/6+1/8+.1/n1/2+1/4+1/6+1/8+.1/n1/2+1/4+1/6+1/8+.1/n这是无穷级数中很有名的调和级数,本身是发散的,极限不存在,也就是说没有定值.
1/2+1/4+1/6+1/8+.1/n
1/2+1/4+1/6+1/8+.1/n
1/2+1/4+1/6+1/8+.1/n
这是无穷级数中很有名的调和级数,本身是发散的,极限不存在,也就是说没有定值.
Sn=n(n+2)(n+4)的分项等于1/6[n(n+2)(n+4)(n+5)-(n-1)n(n+2)(n+4)]吗?
求极限:n趋于∞(1+2^n+4^n+6^n+8^n)^(1/n)的极限.
大一微积分解答:lim(n→+∞)(2^n+4^n+6^n+8^n)^1/n=?
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(n+1)(n+2)/1 +(n+2)(n+3)/1 +(n+3)(n+4)/1
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