User Kevin

3 votes

1 answer

97 views

What does it mean even? And odd?

asked Jan 19, 2017 at 20:35

3 votes

2 answers

65 views

Determine the number of point $z \in \mathbb{C}$ such that $(2z+i\overline{z})^3=27i$

asked Oct 16, 2018 at 23:39

3 votes

2 answers

531 views

How to find infimum and supremum of an inequality?

asked Mar 5, 2019 at 13:24

2 votes

1 answer

68 views

Solve $(z-1)^3=9(\overline{z}-1)$ [duplicate]

asked Jul 16, 2019 at 13:44

2 votes

2 answers

49 views

Solution of $\sum_{x=2}^\infty\frac{3^x}{(x-2)!}$

asked Jul 23, 2019 at 13:57

2 votes

1 answer

1k views

How to find the coordinate vector respect to a matrix basis?

asked Jan 12, 2019 at 12:55

2 votes

4 answers

4k views

How do I find the point equidistant from three points $(x, y, z)$ and belonging to the plane $x-y+3z=0?$

asked Feb 7, 2017 at 16:18

2 votes

3 answers

75 views

How to find the equation of the conic before applying the rotation?

asked Jan 21, 2019 at 20:28

1 vote

2 answers

34 views

How to rewrite a decimal number $x$ as $1.y\cdot2^{n}$?

asked Jan 22, 2019 at 21:30

1 vote

1 answer

45 views

Graph of a function in the neighbourhood of $x=0$

asked Jan 20, 2019 at 14:52

1 vote

1 answer

191 views

How to express a quadric equation from canonical form to a different basis.

asked Jan 20, 2019 at 22:15

1 vote

1 answer

269 views

Maclaurin's series for $\tan(x+x^2)$

asked Jan 21, 2019 at 14:18

1 vote

2 answers

72 views

Why $z+i|z|=0$ has infinitely many solutions?

asked May 4, 2019 at 15:47

1 vote

3 answers

70 views

Why a basis of the vector space $V=\{0\}$ is $B=\{\}$?

asked May 17, 2019 at 16:14

1 vote

1 answer

317 views

How to check if functions are linear?

asked May 18, 2019 at 13:06

1 vote

2 answers

167 views

Find the value of K in a specific case of a cartesian plane

asked Sep 7, 2015 at 9:27

1 vote

3 answers

4k views

Solving equation with Complex Numbers and two unknowns.

asked Mar 20, 2016 at 16:31

1 vote

0 answers

62 views

How to verify the rank-nullity theorem for the linear application $\frac{d}{dx}\in \operatorname{End}(\mathbb{K}[x]_2)$?

asked Jan 17, 2019 at 20:52

1 vote

2 answers

123 views

How to solve ${x^5-3x^3+2x^2-2>0}$ without using a graphing calculator?

asked Jan 25, 2017 at 17:11

1 vote

0 answers

66 views

Solve clauses with multiple pairs of literals in propositional logic

asked Sep 7, 2020 at 19:30

1 vote

1 answer

680 views

How to obtain the empty clause from CNF?

asked Sep 9, 2020 at 15:30

1 vote

4 answers

370 views

What is the smallest n integer number such that 24^n does not divide 50!

asked Nov 7, 2016 at 13:55

1 vote

1 answer

890 views

How to represent the incidence matrix of a graph

asked Nov 28, 2019 at 18:56

1 vote

1 answer

81 views

Complete an orthogonal basis of $\mathbb{R}^4$

asked May 23, 2019 at 14:04

1 vote

3 answers

325 views

Linear Algebra - How to find the axis of a parabola?

asked May 23, 2019 at 18:04

1 vote

1 answer

18 views

Differences between $P_{|BO}=(x_P, y_P,z_P)$ and $P_{|BO}=(x_P \quad y_P \quad z_P )^T$?

asked May 25, 2019 at 20:25

1 vote

0 answers

14 views

Why $\frac{1}{(\frac{\pi}{4})^\beta|\log(x)|^\beta}$ is convergent $\forall \beta$ near $x=0$?

asked May 28, 2019 at 16:58

1 vote

1 answer

54 views

Why $(x-1)(x+1)\sim2(x-1)$ as $x\rightarrow 1$?

asked May 28, 2019 at 18:11

0 votes

2 answers

53 views

How to write the adjoint application defined by a matrix?

asked Jun 12, 2019 at 15:14

0 votes

1 answer

26 views

Represent in the cartesian plane the inequality $|w-z|<1$ given $z$

asked Jul 15, 2019 at 21:29

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62 Questions

What does it mean even? And odd?

Determine the number of point $z \in \mathbb{C}$ such that $(2z+i\overline{z})^3=27i$

How to find infimum and supremum of an inequality?

Solve $(z-1)^3=9(\overline{z}-1)$ [duplicate]

Solution of $\sum_{x=2}^\infty\frac{3^x}{(x-2)!}$

How to find the coordinate vector respect to a matrix basis?

How do I find the point equidistant from three points $(x, y, z)$ and belonging to the plane $x-y+3z=0?$

How to find the equation of the conic before applying the rotation?

How to rewrite a decimal number $x$ as $1.y\cdot2^{n}$?

Graph of a function in the neighbourhood of $x=0$

How to express a quadric equation from canonical form to a different basis.

Maclaurin's series for $\tan(x+x^2)$

Why $z+i|z|=0$ has infinitely many solutions?

Why a basis of the vector space $V=\{0\}$ is $B=\{\}$?

How to check if functions are linear?

Find the value of K in a specific case of a cartesian plane

Solving equation with Complex Numbers and two unknowns.

How to verify the rank-nullity theorem for the linear application $\frac{d}{dx}\in \operatorname{End}(\mathbb{K}[x]_2)$?

How to solve ${x^5-3x^3+2x^2-2>0}$ without using a graphing calculator?

Solve clauses with multiple pairs of literals in propositional logic

How to obtain the empty clause from CNF?

What is the smallest n integer number such that 24^n does not divide 50!

How to represent the incidence matrix of a graph

Complete an orthogonal basis of $\mathbb{R}^4$

Linear Algebra - How to find the axis of a parabola?

Differences between $P_{|BO}=(x_P, y_P,z_P)$ and $P_{|BO}=(x_P \quad y_P \quad z_P )^T$?

Why $\frac{1}{(\frac{\pi}{4})^\beta|\log(x)|^\beta}$ is convergent $\forall \beta$ near $x=0$?

Why $(x-1)(x+1)\sim2(x-1)$ as $x\rightarrow 1$?

How to write the adjoint application defined by a matrix?

Represent in the cartesian plane the inequality $|w-z|<1$ given $z$