List questions from complex-numbers

Published on 13 Apr 2026 - 4:25

75

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Why are these triangles & their circumcircles collinear upon inversion?

Published on 26 Mar 2026 - 12:53

90

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Different branchs of $w^{1/3}$

Published on 25 Mar 2026 - 11:33

23

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The position vector function for a particle.

Published on 15 Apr 2026 - 16:27

49

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Basic exponent problem from facebook

Published on 11 Apr 2026 - 9:36

203

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Extend Hahn-Banach to complex-linear functionals

Published on 12 Apr 2026 - 6:56

18

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Derivative of function f at origin provided 2Ref + 3Imf = 1.

Published on 14 Apr 2026 - 15:53

477

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Complex numbers as ordered pairs: How to define exponentiation?

Published on 08 Apr 2026 - 20:48

77

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I need toSolve this proof for complex numbers

Published on 12 Apr 2026 - 19:08

110

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If $(1 + \operatorname{cis}x)(1 + \operatorname{cis} 2x) = a + bi$, prove that $a^2 + b^2 = (4\cos x \cos\frac x2)^2$

Published on 16 Apr 2026 - 19:30

70

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$i^i\in\mathbb R$

Published on 14 May 2026 - 11:34

61

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Calculate the product: $(\sin\frac{\pi}{12} + i\cos\frac{\pi}{12}) (\sin\frac{\pi}{6} + i\cos\frac{\pi}{6}) (\sin\frac{\pi}{4} + i\cos\frac{\pi}{4})$

Published on 17 Apr 2026 - 1:10

81

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is there an $i$ of logarithms with negative bases and/or negative arguments?

Published on 24 Apr 2026 - 0:47

283

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Complex Numbers: complex slope of a line and associated problem

Published on 10 Apr 2026 - 1:11

509

Views

ABC is an acute-angled triangle whose altitude from the vertices meet the circumcircle

Published on 14 Apr 2026 - 3:41

List Question

Complex eigenvalues and rotations

Why are these triangles & their circumcircles collinear upon inversion?

Different branchs of $w^{1/3}$

The position vector function for a particle.

Basic exponent problem from facebook

Extend Hahn-Banach to complex-linear functionals

Derivative of function f at origin provided 2Ref + 3Imf = 1.

Complex numbers as ordered pairs: How to define exponentiation?

I need toSolve this proof for complex numbers

If $(1 + \operatorname{cis}x)(1 + \operatorname{cis} 2x) = a + bi$, prove that $a^2 + b^2 = (4\cos x \cos\frac x2)^2$

$i^i\in\mathbb R$

Calculate the product: $(\sin\frac{\pi}{12} + i\cos\frac{\pi}{12}) (\sin\frac{\pi}{6} + i\cos\frac{\pi}{6}) (\sin\frac{\pi}{4} + i\cos\frac{\pi}{4})$

is there an $i$ of logarithms with negative bases and/or negative arguments?

Complex Numbers: complex slope of a line and associated problem

ABC is an acute-angled triangle whose altitude from the vertices meet the circumcircle

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