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Thus the idea of $\frac{1}{0}$ can be interpreted as saying that if $\epsilon$ is infinitesimal then $\frac{1}{\epsilon}$ is infinite. This resolves your problem because it shows that …

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Nov 28, 2019 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

谢邀。1原本是作为质数的，因为它本身满足质数的定义（1只可以被1和它本身整除）。1之所以被排除质数的范围，是因为我们有如下定理： （唯一分解定理）对于任意整数 m ，有且仅有一 …

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Feb 3, 2021 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

Oct 15, 2015 · in your Estimation of Population Mean meaning, that mean plus or minus 1.96 times its standard deviation gives 95% C.I. Errors distr. estimation is considered to use t-distr …

One can write $$1+\frac12+\frac13+\cdots+\frac1n=\gamma+\psi(n+1)$$ where $\gamma$ is Euler's constant and $\psi$ is the digamma function. Of course, one reason for creating the …

(1+a)^n This yields exactly the ordinary expansion. Then, by substituting -x for a, we see that the solution is simply the ordinary binomial expansion with alternating signs, just as everyone else …