Question

Modified Sum of Products

score 105 · Answer 1 · 2026-04-01 23:31:30

105

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Modified Sum of Products

Published on 01 Apr 2026 - 23:31

score 1.4k · Answer 2 · 2016-06-05 13:37:51

1.4k

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Proof of $\sin nx=2^{n-1}\prod_{k=0}^{n-1} \sin\left( x + \frac{k\pi}{n} \right)$

Published on 05 Jun 2016 - 13:37

score 58 · Answer 3 · 2016-06-05 17:31:06

58

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Source of faulty reasoning in expectation of product of random variables?

Published on 05 Jun 2016 - 17:31

score 191 · Answer 4 · 2016-06-10 12:36:12

191

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If two infinite sets have the finite closed topology, then their product does not have the finite closed topology.

Published on 10 Jun 2016 - 12:36

score 476 · Answer 5 · 2016-06-11 01:41:41

476

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The limit of consecutive positive integers which are the product of n primes.

Published on 11 Jun 2016 - 1:41

score 87 · Answer 6 · 2016-06-11 13:32:19

87

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Proving ${\pi\over 2}=2\tan^{-1}\left({1\over A}\right)+\tan^{-1}\left({1\over B}\right)$

Published on 11 Jun 2016 - 13:32

score 113 · Answer 7 · 2026-03-30 07:56:41

113

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Product as the sum of powers times a symmetric polynomial: What's the name of this property and what is it used for?

Published on 30 Mar 2026 - 7:56

score 1k · Answer 8 · 2016-06-13 18:59:32

1k

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Product of Fibonacci numbers

Published on 13 Jun 2016 - 18:59

score 338 · Answer 9 · 2016-06-16 01:16:29

338

Views

Understanding components of a vector

Published on 16 Jun 2016 - 1:16

score 66 · Answer 10 · 2016-06-17 18:00:14

66

Views

Is there anything known in general about upper and lower bounds for $\prod_{i\leq n\vee p_n>k}(p_i-k)$

Published on 17 Jun 2016 - 18:00

score 106 · Answer 11 · 2016-06-23 17:02:23

106

Views

Linearise product of two non-negative variables

Published on 23 Jun 2016 - 17:02

score 114 · Answer 12 · 2016-06-27 13:33:17

114

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Value of finite product based on empty set

Published on 27 Jun 2016 - 13:33

score 5.7k · Answer 13 · 2026-03-27 19:08:21

5.7k

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what does $(A\cdot\nabla)B$ mean?

Published on 27 Mar 2026 - 19:08

score 8.6k · Answer 14 · 2016-07-01 20:48:20

8.6k

Views

Is $0! = 1$ because there is only one way to do nothing?

Published on 01 Jul 2016 - 20:48

score 106 · Answer 15 · 2016-07-03 11:24:46

106

Views

Fibred product of sets $X\times_Z Y=\{(x,y)\in X\times Y: \alpha(x)=\beta(y)\}$ satisfies the universal property.

Published on 03 Jul 2016 - 11:24

List Question

Modified Sum of Products

Proof of $\sin nx=2^{n-1}\prod_{k=0}^{n-1} \sin\left( x + \frac{k\pi}{n} \right)$

Source of faulty reasoning in expectation of product of random variables?

If two infinite sets have the finite closed topology, then their product does not have the finite closed topology.

The limit of consecutive positive integers which are the product of n primes.

Proving ${\pi\over 2}=2\tan^{-1}\left({1\over A}\right)+\tan^{-1}\left({1\over B}\right)$

Product as the sum of powers times a symmetric polynomial: What's the name of this property and what is it used for?

Product of Fibonacci numbers

Understanding components of a vector

Is there anything known in general about upper and lower bounds for $\prod_{i\leq n\vee p_n>k}(p_i-k)$

Linearise product of two non-negative variables

Value of finite product based on empty set

what does $(A\cdot\nabla)B$ mean?

Is $0! = 1$ because there is only one way to do nothing?

Fibred product of sets $X\times_Z Y=\{(x,y)\in X\times Y: \alpha(x)=\beta(y)\}$ satisfies the universal property.

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