Question

(complex)Let $\{a_{jk}\}_{j,k \in Z_+}$ be a double sequence of complex numbers. Prove that...

score 110 · Answer 1 · 2026-04-13 01:25:54

110

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(complex)Let $\{a_{jk}\}_{j,k \in Z_+}$ be a double sequence of complex numbers. Prove that...

Published on 13 Apr 2026 - 1:25

score 54 · Answer 2 · 2026-03-26 13:01:05

54

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Is it true that for sequences that satisfy the property-type in Goldbach's conjecture, there is an integer which cannot be expressed in a unique way?

Published on 26 Mar 2026 - 13:01

score 34 · Answer 3 · 2026-04-12 14:00:10

34

Views

Deriving from Doppler's formula

Published on 12 Apr 2026 - 14:00

score 117 · Answer 4 · 2026-04-17 12:22:05

117

Views

$f(n) + f(f(n)) = 2n + 3$, find all $f(n)$.

Published on 17 Apr 2026 - 12:22

score 210 · Answer 5 · 2026-04-15 13:15:32

210

Views

Volume and height of a pyramid

Published on 15 Apr 2026 - 13:15

score 98 · Answer 6 · 2026-04-16 05:23:53

98

Views

A game of identifying real coins and weighing them.

Published on 16 Apr 2026 - 5:23

score 354 · Answer 7 · 2026-04-11 12:36:17

354

Views

Proof that length is proportional to height

Published on 11 Apr 2026 - 12:36

score 102 · Answer 8 · 2026-04-16 03:05:38

102

Views

Show continuity of the following functions: a) $f: \mathbb C \to \mathbb C, f(z) = \vert z \vert$. b) $g: \mathbb C \to \mathbb C, g(z) = \ \bar z$

Published on 16 Apr 2026 - 3:05

score 116 · Answer 9 · 2026-04-12 09:25:25

116

Views

(complex)Let $f: D \subset \mathbb R^2 \to \mathbb R^2$ be a function defined on an open subset $D \subset \mathbb R^2$...

Published on 12 Apr 2026 - 9:25

score 80 · Answer 10 · 2026-04-11 13:23:30

80

Views

An entire function satisfying $f(z)\to 0$ as $z\to \infty$ is a constant.

Published on 11 Apr 2026 - 13:23

score 65 · Answer 11 · 2026-04-11 05:59:59

65

Views

Probability without replacement in forming a committee

Published on 11 Apr 2026 - 5:59

score 66 · Answer 12 · 2026-04-11 16:42:09

66

Views

Need help in solving for the roots of this biquadratic equation

Published on 11 Apr 2026 - 16:42

score 84 · Answer 13 · 2026-04-09 14:00:07

84

Views

winning strategy, two players on a $100 \times 100$ board game

Published on 09 Apr 2026 - 14:00

score 147 · Answer 14 · 2026-04-18 22:55:42

147

Views

Problems in complex analysis.

Published on 18 Apr 2026 - 22:55

score 121 · Answer 15 · 2026-04-12 02:15:07

121

Views

(complex variables) Calculate the integrals below using the theory seen on Cauchy's integral formula. Do not use the formula that involves ...

Published on 12 Apr 2026 - 2:15

List Question

(complex)Let $\{a_{jk}\}_{j,k \in Z_+}$ be a double sequence of complex numbers. Prove that...

Is it true that for sequences that satisfy the property-type in Goldbach's conjecture, there is an integer which cannot be expressed in a unique way?

Deriving from Doppler's formula

$f(n) + f(f(n)) = 2n + 3$, find all $f(n)$.

Volume and height of a pyramid

A game of identifying real coins and weighing them.

Proof that length is proportional to height

Show continuity of the following functions: a) $f: \mathbb C \to \mathbb C, f(z) = \vert z \vert$. b) $g: \mathbb C \to \mathbb C, g(z) = \ \bar z$

(complex)Let $f: D \subset \mathbb R^2 \to \mathbb R^2$ be a function defined on an open subset $D \subset \mathbb R^2$...

An entire function satisfying $f(z)\to 0$ as $z\to \infty$ is a constant.

Probability without replacement in forming a committee

Need help in solving for the roots of this biquadratic equation

winning strategy, two players on a $100 \times 100$ board game

Problems in complex analysis.

(complex variables) Calculate the integrals below using the theory seen on Cauchy's integral formula. Do not use the formula that involves ...

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