How do I calculate this sum in terms of 'n'? I know this is a harmonic progression, but I can't find how to calculate the summation of it. Also, is it an expansion of any mathematical function? 1 ...

2016年10月29日 · I know that the sum of powers of $2$ is $2^{n+1}-1$, and I know the mathematical induction proof. But does anyone know how $2^{n+1}-1$ comes up in the first …

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2021年4月3日 · Repeated sum is denoted using $\\sum$ and is called "summation." What is the name for the analogous process with multiplication, denoted $\\prod$?

2013年1月29日 · The second term has an n because it is simply the summation from i=1 to i=n of a constant. The summation of a constant is equal to n multiplied by the constant.

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2014年12月28日 · How would I estimate the sum of a series of numbers like this: $2^0+2^1+2^2+2^3+\\cdots+2^n$. What math course deals with this sort of calculation? …

What are the (most important) rules of double sums? Below are some rules I encountered - are they all correct and complete? Offerings of clear intuition or proofs (or other additions) are …

2014年10月13日 · Here is my problem, I want to compute the $$\\sum_{i=0}^n P^i : P\\in ℤ_{>1}$$ I know I can implement it using an easy recursive function, but since I want to use …