把1英寸分成8等分: 1/8 1/4 3/8 1/2 5/8 3/4 7/8 英寸。 This is an arithmetic sequence since there is a common difference between each term. In this case, adding 18 to the previous term in the … From zhihu.com
BINOMIAL EXPANSION OF $ (1-X)^N$ - MATHEMATICS STACK EXCHANGE
I'm not sure how appropriate it is to answer questions this old, but compared to the methods above, I feel the easiest way to see the answer to this question is to take a = -x And substitute … From math.stackexchange.com
GIVEN A 95% CONFIDENCE INTERVAL WHY ARE WE USING 1.96 AND NOT …
Oct 15, 2015 Two reasons: 1) Students are in New Jersey. 2) the z z -value associated with 95% is z=1.96; this can be seen as part of the 1-2-3, 65-95-99 rule that tells you that values within … From math.stackexchange.com
WHAT IS 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 + 1/7 - 1/8 +1/9
Nov 28, 2019 Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and … From math.stackexchange.com
Possible Duplicate: Prove 0! = 1 0! = 1 from first principles Why does 0! = 1 0! = 1? All I know of factorial is that x! x! is equal to the product of all the numbers that come before it. The product … From math.stackexchange.com
WHAT DOES $QAQ^{-1}$ ACTUALLY MEAN? - MATHEMATICS STACK …
Apr 28, 2020 I'm self-learning Linear Algebra and have been trying to take a geometric approach to understand what matrices mean visually. I've noticed this matrix product pop up repeatedly … From math.stackexchange.com
ABSTRACT ALGEBRA - PROVE THAT 1+1=2 - MATHEMATICS STACK EXCHANGE
Jan 15, 2013 Possible Duplicate: How do I convince someone that $1+1=2$ may not necessarily be true? I once read that some mathematicians provided a very length proof of $1+1=2$. Can … From math.stackexchange.com
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