List questions from complex-numbers

Published on 28 Mar 2026 - 4:52

177

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$\lim_{n\to \infty} \prod_{k=1}^n \left( \frac {2k}{2k-1}\right) \int_{-1}^{\infty} \frac {(\cos x)^{2n}}{2^x} dx$

Published on 07 Oct 2018 - 4:00

30

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Complex number equations ( process)

Published on 07 Oct 2018 - 9:19

144

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Convert complex number to polar coordinates - round 2

Published on 28 Mar 2026 - 5:01

1.3k

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Complex Numbers in Polar Form raised to a power

Published on 07 Oct 2018 - 16:26

59

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system of equations-complex number

Published on 07 Oct 2018 - 18:39

231

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Higher dimensional real matrix representation of imaginary unit?

Published on 28 Mar 2026 - 8:08

38

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How to prove this inequation in Fourier Analysis?

Published on 27 Mar 2026 - 14:21

323

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Family of circles orthogonal to two given circles

Published on 26 Mar 2026 - 13:51

1.5k

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Prove that the sine of a complex conjugate is equal to the conjugate of the sine of the complex number

Published on 08 Oct 2018 - 4:27

88

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Finding the area of this ellipse written in complex polar form.

Published on 22 Mar 2026 - 6:48

616

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Necessary and sufficient conditions for a quadratic polynomial with complex coefficients to have both roots with negative real parts

Published on 08 Oct 2018 - 18:52

20

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If $f \in A(D)$, is $f'$ continuous in $\overline D$?

Published on 08 Oct 2018 - 21:14

39

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Characterization of the complex derivative.

Published on 08 Oct 2018 - 23:27

515

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Rings with a finite set of units

Published on 26 Mar 2026 - 6:29

List Question

Convert complex number to polar coordinates

$\lim_{n\to \infty} \prod_{k=1}^n \left( \frac {2k}{2k-1}\right) \int_{-1}^{\infty} \frac {(\cos x)^{2n}}{2^x} dx$

Complex number equations ( process)

Convert complex number to polar coordinates - round 2

Complex Numbers in Polar Form raised to a power

system of equations-complex number

Higher dimensional real matrix representation of imaginary unit?

How to prove this inequation in Fourier Analysis?

Family of circles orthogonal to two given circles

Prove that the sine of a complex conjugate is equal to the conjugate of the sine of the complex number

Finding the area of this ellipse written in complex polar form.

Necessary and sufficient conditions for a quadratic polynomial with complex coefficients to have both roots with negative real parts

If $f \in A(D)$, is $f'$ continuous in $\overline D$?

Characterization of the complex derivative.

Rings with a finite set of units

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