Mathematics
Saikai Prime's user avatar
Saikai Prime's user avatar
Saikai Prime's user avatar
Saikai Prime
  • Member for 3 years
  • Last seen more than 1 year ago
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14
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35
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10
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View all questions and answers
All Questions Answers
Score Newest
answer
7
Are singletons open sets?
Jan 7, 2021
answer
5
How do even and odd functions relate to even and odd numbers?
Jan 11, 2021
answer
4
Surjective map from $\mathbb{Z}^+$ to $\mathbb{Z}$.
Jan 11, 2021
answer
4
The limit $\lim_{x \to ∞} (3x^4-5x^2+1)(1-e^{1/x^2})^2$
Jan 4, 2021
answer
4
Why is $1+\frac{1}{1\cdot2}+\frac{1}{2\cdot3}+...+\frac{1}{n(n-1)}=2-\frac{1}{n}$ true?
Jan 7, 2021
answer
4
Suppose that $\underset{x\rightarrow0}{\lim}\frac{f\left(x\right)}{\left|x\right|}=1$ , may $f$ be differentiable at $0$?
Jan 5, 2021
answer
3
Solving for x in $\frac{1+y}{1-y}=(1+x)^{1+x}(1-x)^{1-x}$
Jan 11, 2021
answer
3
How do you prove$ \frac{1-\cos x}{\sin x}=\tan\left(\frac{x}{2}\right)$?
Jan 10, 2021
answer
3
Prove absolute convergence of $\sum_{n=0}^{\infty} a_{f(n)}$ if $f$ is increasing and $\sum_{n=0}^{\infty} a_n$ is absolutely convergent
Jan 6, 2021
question
2
How to integrate $\int e^{2x} \sec{3x} \,dx$ [closed]
Dec 11, 2020

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