Question

Check if these statements are true for all complex nubmers

score 987 · Answer 1 · 2018-11-16 20:40:37

987

Views

Check if these statements are true for all complex nubmers

Published on 16 Nov 2018 - 20:40

score 1.5k · Answer 2 · 2026-03-28 13:59:30

1.5k

Views

Does a mathematical proof in $\mathbb{C}$ imply a proof in the $\mathbb{R}$?

Published on 28 Mar 2026 - 13:59

score 165 · Answer 3 · 2018-11-17 10:45:41

165

Views

If $z = cis(2k\pi/5)$, $z \neq 1$, then what is $(z+1/z)^2+(z^2 + 1/z^2)^2=$?

Published on 17 Nov 2018 - 10:45

score 146 · Answer 4 · 2026-03-25 20:33:51

146

Views

Partial fraction for complex roots using the second order polynomial

Published on 25 Mar 2026 - 20:33

score 39 · Answer 5 · 2026-03-26 01:01:58

39

Views

Maximum Singular Value of $\textbf{A} -\textbf{B}$ for a Certain $\textbf{B}$

Published on 26 Mar 2026 - 1:01

score 57 · Answer 6 · 2026-03-28 20:57:31

57

Views

Fast way to solve $(s-2i)^2 (s+2i)^2$

Published on 28 Mar 2026 - 20:57

score 94 · Answer 7 · 2026-04-03 06:17:42

94

Views

Show that if $z^n$ + $z^{n-1}$ + ... + $z$ + 1 = 0 then $z$ $\neq$ 1 and $z^{n+1}$ =1.

Published on 03 Apr 2026 - 6:17

score 28 · Answer 8 · 2026-04-03 06:21:29

28

Views

Show that if $z$ is a complex number such that $z^5$ + 5$z^2$ + 7 = 0, then |$z$| > 1.

Published on 03 Apr 2026 - 6:21

score 60 · Answer 9 · 2018-11-18 00:57:34

60

Views

Solving complex number equations involving trig

Published on 18 Nov 2018 - 0:57

score 51 · Answer 10 · 2018-11-18 11:09:42

51

Views

Complex roots, conjugated complex numbers

Published on 18 Nov 2018 - 11:09

score 139 · Answer 11 · 2018-11-18 13:37:09

139

Views

Complex number roots, complex plane

Published on 18 Nov 2018 - 13:37

score 41 · Answer 12 · 2018-11-18 17:06:06

41

Views

solving basic complex equations

Published on 18 Nov 2018 - 17:06

score 98 · Answer 13 · 2026-03-28 10:16:30

98

Views

Simplifying addition of polar complex conjugate exponents in the denominator

Published on 28 Mar 2026 - 10:16

score 903 · Answer 14 · 2026-03-25 08:12:52

903

Views

Identify and classify the singularities of $\frac{1}{\exp(\frac{1}{z}) + 2}$

Published on 25 Mar 2026 - 8:12

score 140 · Answer 15 · 2026-03-26 17:27:40

140

Views

Need help with a problem regarding Descartes' theorem

Published on 26 Mar 2026 - 17:27

List Question

Check if these statements are true for all complex nubmers

Does a mathematical proof in $\mathbb{C}$ imply a proof in the $\mathbb{R}$?

If $z = cis(2k\pi/5)$, $z \neq 1$, then what is $(z+1/z)^2+(z^2 + 1/z^2)^2=$?

Partial fraction for complex roots using the second order polynomial

Maximum Singular Value of $\textbf{A} -\textbf{B}$ for a Certain $\textbf{B}$

Fast way to solve $(s-2i)^2 (s+2i)^2$

Show that if $z^n$ + $z^{n-1}$ + ... + $z$ + 1 = 0 then $z$ $\neq$ 1 and $z^{n+1}$ =1.

Show that if $z$ is a complex number such that $z^5$ + 5$z^2$ + 7 = 0, then |$z$| > 1.

Solving complex number equations involving trig

Complex roots, conjugated complex numbers

Complex number roots, complex plane

solving basic complex equations

Simplifying addition of polar complex conjugate exponents in the denominator

Identify and classify the singularities of $\frac{1}{\exp(\frac{1}{z}) + 2}$

Need help with a problem regarding Descartes' theorem

Trending Questions

Popular # Hahtags

Popular Questions