List questions from complex-numbers

Published on 11 Apr 2026 - 12:54

118

Views

Is the series: $\,\sum_{n=1}^{\infty}\frac{\mathrm{e}^{-in}}{n}\,$ divergent?

Published on 23 Apr 2026 - 10:38

4.2k

Views

Why is $i^2$ equal to $-1$?

Published on 13 Apr 2026 - 9:09

179

Views

Lower bound of integral (difficult one)

Published on 15 Apr 2026 - 10:40

2.2k

Views

If $(a + ib)^3 = 8$, prove that $a^2 + b^2 = 4$

Published on 16 Apr 2026 - 21:35

140

Views

Limit of $i^{n!}-2^{-n}$

Published on 12 Apr 2026 - 16:14

57

Views

A question on branch of an inverse

Published on 12 Apr 2026 - 17:29

36

Views

Prove that $\hat{f}(n)={\frac{2}{\pi(1-4n^2)}}$, given that $f(x)=|sin(\pi x)|$

Published on 15 Apr 2026 - 19:03

100

Views

How to find the complex solution of $x^6$

Published on 10 Apr 2026 - 22:31

499

Views

A question on absolute values of line integrals

Published on 14 Apr 2026 - 22:17

160

Views

summation and product of sin and cos

Published on 13 Apr 2026 - 6:06

238

Views

Write $\sum_{k=0}^{\infty} \cos(k \pi / 6)$ in form $a+bi$

Published on 16 Apr 2026 - 10:17

153

Views

If $w = e^{2i\pi/5} $, then $1 + w + w^{2} + w^{3} + 5w^{4} + 4w^{5} + 4w^{6} + 4w^{7} + 4w^{8} + 5w^{9}$=?

Published on 17 Apr 2026 - 0:07

1k

Views

Complex Cubic Equation z^3+3z+2i=0

Published on 13 Apr 2026 - 7:25

61

Views

Existence of a root $\alpha$ so that $|\alpha+i| <1$

Published on 15 Apr 2026 - 5:58

List Question

Is the exponential function the one this problem is hinting at?

Is the series: $\,\sum_{n=1}^{\infty}\frac{\mathrm{e}^{-in}}{n}\,$ divergent?

Why is $i^2$ equal to $-1$?

Lower bound of integral (difficult one)

If $(a + ib)^3 = 8$, prove that $a^2 + b^2 = 4$

Limit of $i^{n!}-2^{-n}$

A question on branch of an inverse

Prove that $\hat{f}(n)={\frac{2}{\pi(1-4n^2)}}$, given that $f(x)=|sin(\pi x)|$

How to find the complex solution of $x^6$

A question on absolute values of line integrals

summation and product of sin and cos

Write $\sum_{k=0}^{\infty} \cos(k \pi / 6)$ in form $a+bi$

If $w = e^{2i\pi/5} $, then $1 + w + w^{2} + w^{3} + 5w^{4} + 4w^{5} + 4w^{6} + 4w^{7} + 4w^{8} + 5w^{9}$=?

Complex Cubic Equation z^3+3z+2i=0

Existence of a root $\alpha$ so that $|\alpha+i| <1$

Trending Questions

Popular # Hahtags

Popular Questions