Sarunas

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Individually studying mathematics.

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25 Questions

views newest activity votes

4

votes

2

answers

116

views

Multiplication of determinants

linear-algebra determinant

may 15 at 12:00 Ewan Delanoy 8,413

4

votes

3

answers

60

views

$\sum_{n=0}^{\infty}\frac{x^{n+3}}{(n+3)!}$

sequences-and-series

jan 26 at 16:30 Babak S. 27.7k

4

votes

2

answers

54

views

Determine the limit for $a\geq-1$

calculus sequences-and-series limit

jan 22 at 15:37 Chris's wise sister 11.5k

1

3

votes

0

answers

49

views

Unitary space, inner product

linear-algebra

feb 10 at 17:14 Sarunas 155

3

votes

2

answers

59

views

improper integral equal to 1

limit improper-integrals

jan 22 at 21:42 André Nicolas 161k

1

2

votes

2

answers

53

views

Help over the proof of triple vector product identity

linear-algebra cross-product

may 9 at 20:55 rschwieb 20.9k

2

votes

2

answers

37

views

Roots of cubic polynomial lying inside the circle

polynomials complex-numbers roots

may 5 at 20:22 xpaul 1,036

2

votes

2

answers

50

views

Axis of glide reflection

geometry complex-numbers

apr 29 at 7:58 MvG 2,587

2

votes

1

answer

55

views

Inner product - change of axioms

linear-algebra

feb 9 at 20:25 Pete L. Clark 44.6k

2

votes

2

answers

92

views

integration by parts from Apostol

calculus integration

nov 18 at 19:36 Sarunas 155

1

vote

1

answer

24

views

Normal intersecting a sphere

spherical-geometry

may 15 at 19:44 Peter Taylor 3,234

1

1

vote

1

answer

33

views

A method for solving cubic equation

complex-numbers

may 1 at 16:54 J. J. 2,586

1

vote

2

answers

24

views

Rotation of angle $\frac{\pi}{4}$ about the point $i$

complex-numbers

apr 27 at 8:45 Federica Maggioni 3,724

1

vote

1

answer

54

views

determine matrix relative to new bases

linear-algebra

feb 16 at 18:32 DonAntonio 46.8k

1

1

vote

1

answer

36

views

nonrectifiable curve

multivariable-calculus

feb 6 at 17:06 Michael Hardy 48.1k

1

vote

3

answers

49

views

determining sum of the series given recursively

sequences-and-series

jan 27 at 18:37 Peder 258

1

vote

1

answer

47

views

Show that $\frac{1}{x^2+x+1}=\frac{2}{\sqrt3}\sum_{n=0}^{\infty}\sin\bigg(\frac{2\pi(n+1)}{3}\bigg)x^n$

sequences-and-series

jan 26 at 21:10 Did 103k

1

vote

1

answer

76

views

$\int\limits_0^{\pi}\sum\limits_{n=1}^{\infty}\frac{\sin(nx)}{n^2}dx=2\sum\limits_{n=1}^{\infty}\frac{1}{(2n-1)^3}$

uniform-convergence

jan 25 at 20:21 Did 103k

1

vote

3

answers

81

views

Taylor expansion of $\sin(x-x^2)$

taylor-expansion

jan 10 at 14:59 DonAntonio 46.8k

1

vote

2

answers

70

views

integrating not explicitly?

calculus integration

jan 10 at 11:24 M. Strochyk 4,668

1

1

vote

1

answer

62

views

Integration using Taylor approximations

calculus integration taylor-expansion

jan 10 at 8:26 JavaMan 8,270

1

1

vote

1

answer

56

views

Bernoulli polynomials, Apostol

calculus polynomials induction

nov 25 at 11:52 J. M. 38.9k

1

vote

1

answer

248

views

Second mean-value theorem for integrals, Apostol

calculus integration

nov 19 at 9:32 martini 15.8k

0

votes

1

answer

92

views

if $f(x)=o(g(x))$ will $\int_0^x f(x)=o(\int_0^x g(x))$ and $f'(x)=o(g'(x))$?

calculus limit integration

jan 11 at 9:36 Sarunas 155

0

votes

1

answer

43

views

Integration by parts, Apostol

calculus integration

nov 19 at 7:53 user17762 76.2k

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