List questions from complex-numbers

Published on 14 May 2019 - 23:15

559

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Powers of complex numbers.

Published on 07 Apr 2026 - 18:52

166

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How to show that $f(z)= 1/(z-a)$ is periodic with period $2\pi i$?

Published on 15 May 2019 - 16:28

62

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Convergence of $\sum_{n=1}^\infty \frac{z^{n!}}{n^2}$ where $\vert z\vert = 1$?

Published on 02 Apr 2026 - 23:01

50

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How is Im$[(z_1+z_2)(z_2+z_3)(z_3+z_1)]/(z_1 z_2 z_3) = 0$

Published on 16 May 2019 - 4:23

38

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Can this exponential be complex valued?

Published on 30 Mar 2026 - 9:44

7.2k

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What online graphing tools handle complex numbers well?

Published on 26 Mar 2026 - 17:51

62

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Solve in $C$ : $p(x)=x^4+2x^3-x^2-2x+7=0$

Published on 25 Mar 2026 - 18:51

49

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If $V=\overline V$ where $V$ is a vector space, then there exists a real basis of $V$

Published on 16 May 2019 - 14:29

53

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Determine a Constant

Published on 05 Apr 2026 - 10:57

83

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sums of series involving complex numbers

Published on 25 Mar 2026 - 19:03

351

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Completing the square with complex numbers

Published on 25 Mar 2026 - 9:33

11.1k

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What is the value of $e^{3i \pi /2}$?

Published on 27 Mar 2026 - 1:45

1.1k

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Computation of time average of a product of two oscillatory quantities

Published on 18 May 2019 - 11:13

66

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How is $\sum_{k=0}^{5} {}^5C_k\sin(kx)\cos(5-k)x=16\sin(5x)$?

Published on 27 Mar 2026 - 20:14

List Question

How do I solve $z^6+z^5+z^4+z^3+z^2+z=0$?

Powers of complex numbers.

How to show that $f(z)= 1/(z-a)$ is periodic with period $2\pi i$?

Convergence of $\sum_{n=1}^\infty \frac{z^{n!}}{n^2}$ where $\vert z\vert = 1$?

How is Im$[(z_1+z_2)(z_2+z_3)(z_3+z_1)]/(z_1 z_2 z_3) = 0$

Can this exponential be complex valued?

What online graphing tools handle complex numbers well?

Solve in $C$ : $p(x)=x^4+2x^3-x^2-2x+7=0$

If $V=\overline V$ where $V$ is a vector space, then there exists a real basis of $V$

Determine a Constant

sums of series involving complex numbers

Completing the square with complex numbers

What is the value of $e^{3i \pi /2}$?

Computation of time average of a product of two oscillatory quantities

How is $\sum_{k=0}^{5} {}^5C_k\sin(kx)\cos(5-k)x=16\sin(5x)$?

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