User Colleg an Delta

3 votes

2 answers

60 views

How can I find the interval of x? I apply ratio test and get indeterminate. $\sum_{n=1}^\infty({(n+1)(n+2)....(2n)\over n^n})\space (x-2)^n$

asked Jun 24, 2020 at 14:01

1 vote

2 answers

95 views

I solved but don't know if it is correct, can you help me? Showing $P(X\cup Y)\approx P(X)\times P(Y)$

asked Jun 28, 2020 at 9:44

1 vote

2 answers

180 views

Markov Chains: Expected visit time when the visit probability is less than 1

asked Aug 1, 2023 at 8:27

1 vote

1 answer

105 views

Upper bound on the commute time for adjacent nodes

asked Aug 4, 2023 at 10:55

0 votes

1 answer

63 views

On $X_1\cup X_2$ define a well-ordered set preserving the order relations defined set on $X_1$ and $X_2$ [closed]

asked Sep 14, 2020 at 16:48

0 votes

0 answers

68 views

To evaluate $\sin(55°)$ with $10^{-4}$ error margin, how many terms are needed for the Taylor Series?

asked Jun 24, 2020 at 19:11

0 votes

1 answer

40 views

Interval of convergence of $\sum_{n=1}^\infty\frac{(x-2)^n\prod_{i=1}^n(n+i)}{n^n}$

asked Jun 25, 2020 at 8:15

0 votes

1 answer

418 views

How to find maximal element of a set and its minimal elements?

asked May 28, 2020 at 13:29

0 votes

1 answer

29 views

How can I compare $\bigcup_{n\in\mathbb{N}}X_n$ with $\mathbb{N}\times Y$?

asked Sep 15, 2020 at 13:05

-1 votes

1 answer

54 views

Examine the convergence: $\sum_{n=1}^{\infty}(-1)^{n-1}\sin\frac{a}{n}(a\gt 0)$ (I solved but not sure if it is correct)

asked Jun 8, 2020 at 10:53

-2 votes

1 answer

27 views

For A, find an f:A -> N choice function that is also an $f:(A,\subseteq)$ -> (N,<=) ordinal isomorphic function, explain

asked Sep 15, 2020 at 10:29

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11 Questions

How can I find the interval of x? I apply ratio test and get indeterminate. $\sum_{n=1}^\infty({(n+1)(n+2)....(2n)\over n^n})\space (x-2)^n$

I solved but don't know if it is correct, can you help me? Showing $P(X\cup Y)\approx P(X)\times P(Y)$

Markov Chains: Expected visit time when the visit probability is less than 1

Upper bound on the commute time for adjacent nodes

On $X_1\cup X_2$ define a well-ordered set preserving the order relations defined set on $X_1$ and $X_2$ [closed]

To evaluate $\sin(55°)$ with $10^{-4}$ error margin, how many terms are needed for the Taylor Series?

Interval of convergence of $\sum_{n=1}^\infty\frac{(x-2)^n\prod_{i=1}^n(n+i)}{n^n}$

How to find maximal element of a set and its minimal elements?

How can I compare $\bigcup_{n\in\mathbb{N}}X_n$ with $\mathbb{N}\times Y$?

Examine the convergence: $\sum_{n=1}^{\infty}(-1)^{n-1}\sin\frac{a}{n}(a\gt 0)$ (I solved but not sure if it is correct)

For A, find an f:A -> N choice function that is also an $f:(A,\subseteq)$ -> (N,<=) ordinal isomorphic function, explain