Question

Lower bound on $k$ when $(1-\varepsilon )^k < \frac{3}{4n}$

score 38 · Answer 1 · 2026-05-10 16:11:42

38

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Lower bound on $k$ when $(1-\varepsilon )^k < \frac{3}{4n}$

Published on 10 May 2026 - 16:11

score 1.7k · Answer 2 · 2026-05-10 18:59:19

1.7k

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Differentiate the function $y=\cos^{-1}(\sin x)$ w.r.t $x$

Published on 10 May 2026 - 18:59

score 1.4k · Answer 3 · 2026-04-14 23:41:06

1.4k

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Determining whether the series: $\sum_{n=1}^{\infty} \tan\left(\frac{1}{n}\right) $ converges

Published on 14 Apr 2026 - 23:41

score 106 · Answer 4 · 2026-04-17 13:10:10

106

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What is $\frac{d\left( (\cos(x))^{\cos(x)}\right)}{dx}$?

Published on 17 Apr 2026 - 13:10

score 85 · Answer 5 · 2026-05-10 15:44:15

85

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Integrate $\int_{\|x\| \le R} e^{x \cdot y} dx$ using spherical coordinates

Published on 10 May 2026 - 15:44

score 39 · Answer 6 · 2026-04-16 14:46:18

39

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Computing the norm of the operator $T: (\Bbb R^n, \|\cdot\|_2)\to (\Bbb R^n, \|\cdot\|_1)$ with $Tx = (\delta^kx_k)_{k=1,...,n}$

Published on 16 Apr 2026 - 14:46

score 319 · Answer 7 · 2026-05-10 17:16:06

319

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Derivative of log $x_i$ inside a $\log \sum$ of $x$

Published on 10 May 2026 - 17:16

score 462 · Answer 8 · 2026-04-14 07:32:09

462

Views

Differentiability of the maximum

Published on 14 Apr 2026 - 7:32

score 187 · Answer 9 · 2026-04-25 04:29:03

187

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If the series $\sum_{n=1}^{\infty} na_{n} $ converges, then $\sum_{n=1}^{\infty} na_{n+1} $ also converges?

Published on 25 Apr 2026 - 4:29

score 118 · Answer 10 · 2026-04-15 11:23:49

118

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Solution of $3^x+x^2=1$ using calculus

Published on 15 Apr 2026 - 11:23

score 117 · Answer 11 · 2026-04-16 10:06:48

117

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Convergent vs. Divergent Sequences of same power quotient

Published on 16 Apr 2026 - 10:06

score 469 · Answer 12 · 2026-05-06 23:30:08

469

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Multivariate normal/change of variables in integral ("derivative of change is change of derivative"?)

Published on 06 May 2026 - 23:30

score 162 · Answer 13 · 2026-05-11 10:19:04

162

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Find a $\delta$ such that $\lvert \sqrt{x} - 1 \rvert<\varepsilon$ for all $x$ satisfying $0<\lvert x-1 \rvert <\delta$

Published on 11 May 2026 - 10:19

score 1.1k · Answer 14 · 2026-04-11 17:44:01

1.1k

Views

Is an English translation of Leibnitz's paper on calculus available?

Published on 11 Apr 2026 - 17:44

score 1.2k · Answer 15 · 2026-03-25 23:52:33

1.2k

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Sum of the first integer powers of $n$ up to k

Published on 25 Mar 2026 - 23:52

List Question

Lower bound on $k$ when $(1-\varepsilon )^k < \frac{3}{4n}$

Differentiate the function $y=\cos^{-1}(\sin x)$ w.r.t $x$

Determining whether the series: $\sum_{n=1}^{\infty} \tan\left(\frac{1}{n}\right) $ converges

What is $\frac{d\left( (\cos(x))^{\cos(x)}\right)}{dx}$?

Integrate $\int_{\|x\| \le R} e^{x \cdot y} dx$ using spherical coordinates

Computing the norm of the operator $T: (\Bbb R^n, \|\cdot\|_2)\to (\Bbb R^n, \|\cdot\|_1)$ with $Tx = (\delta^kx_k)_{k=1,...,n}$

Derivative of log $x_i$ inside a $\log \sum$ of $x$

Differentiability of the maximum

If the series $\sum_{n=1}^{\infty} na_{n} $ converges, then $\sum_{n=1}^{\infty} na_{n+1} $ also converges?

Solution of $3^x+x^2=1$ using calculus

Convergent vs. Divergent Sequences of same power quotient

Multivariate normal/change of variables in integral ("derivative of change is change of derivative"?)

Find a $\delta$ such that $\lvert \sqrt{x} - 1 \rvert<\varepsilon$ for all $x$ satisfying $0<\lvert x-1 \rvert <\delta$

Is an English translation of Leibnitz's paper on calculus available?

Sum of the first integer powers of $n$ up to k

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