Question

Maximizing the sum $\sum_{n=1}^m \sin n$

score 131 · Answer 1 · 2026-04-01 14:00:52

131

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Maximizing the sum $\sum_{n=1}^m \sin n$

Published on 01 Apr 2026 - 14:00

score 214 · Answer 2 · 2018-10-17 23:59:35

214

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Prove $4\sin(2\pi/5)+\tan(2\pi/5)=5\cot(\pi/5)$

Published on 17 Oct 2018 - 23:59

score 111 · Answer 3 · 2018-10-18 03:36:12

111

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How to solve $\sin(x) + 2 \sin (2x) = 0.74$?

Published on 18 Oct 2018 - 3:36

score 162 · Answer 4 · 2018-10-18 04:11:10

162

Views

Why is the $\tan(\frac{\theta}{2})$ not $\pm$?

Published on 18 Oct 2018 - 4:11

score 69 · Answer 5 · 2026-04-10 19:13:18

69

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Finding Coordinates of a Triangle using Azimuth?

Published on 10 Apr 2026 - 19:13

score 78 · Answer 6 · 2018-10-18 15:32:11

78

Views

How should I interpret these trigonometry instructions?

Published on 18 Oct 2018 - 15:32

score 102 · Answer 7 · 2018-10-18 15:57:39

102

Views

On a Unit Circle, Determine all Values of Theta for X Trigonometric Function

Published on 18 Oct 2018 - 15:57

score 295 · Answer 8 · 2026-04-02 15:16:00

295

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Prove that $\frac{1+\sin\theta + i\cos\theta}{1+\sin\theta-i\cos\theta}=\sin\theta+i\cos\theta.$

Published on 02 Apr 2026 - 15:16

score 44 · Answer 9 · 2026-04-08 17:59:23

44

Views

How to rearrange an equation for NMRI calculations

Published on 08 Apr 2026 - 17:59

score 100 · Answer 10 · 2018-10-19 08:37:55

100

Views

Simplifying $\sin^{-1}(\cos x)$

Published on 19 Oct 2018 - 8:37

score 136 · Answer 11 · 2026-04-11 01:10:51

136

Views

A chain rule for the angle

Published on 11 Apr 2026 - 1:10

score 264 · Answer 12 · 2018-10-19 13:02:13

264

Views

find $\cos\theta$ if $\sin\theta=\frac{3}{4}$ and $\tan\theta=\frac{9}{2}$

Published on 19 Oct 2018 - 13:02

score 322 · Answer 13 · 2026-03-26 03:12:27

322

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Modelling a drone in 3D: finding the z component of the thrust vector knowing pitch (about x) and roll (about y) angles.

Published on 26 Mar 2026 - 3:12

score 57 · Answer 14 · 2026-04-02 15:16:00

57

Views

Show that $2\cos(mp-nq)$ is one of the values of $\left( \frac{x^m}{y^n}+\frac{y^n}{x^m} \right)$

Published on 02 Apr 2026 - 15:16

score 246 · Answer 15 · 2018-10-19 16:08:26

246

Views

How to solve $x=8\sin x$?

Published on 19 Oct 2018 - 16:08

List Question

Maximizing the sum $\sum_{n=1}^m \sin n$

Prove $4\sin(2\pi/5)+\tan(2\pi/5)=5\cot(\pi/5)$

How to solve $\sin(x) + 2 \sin (2x) = 0.74$?

Why is the $\tan(\frac{\theta}{2})$ not $\pm$?

Finding Coordinates of a Triangle using Azimuth?

How should I interpret these trigonometry instructions?

On a Unit Circle, Determine all Values of Theta for X Trigonometric Function

Prove that $\frac{1+\sin\theta + i\cos\theta}{1+\sin\theta-i\cos\theta}=\sin\theta+i\cos\theta.$

How to rearrange an equation for NMRI calculations

Simplifying $\sin^{-1}(\cos x)$

A chain rule for the angle

find $\cos\theta$ if $\sin\theta=\frac{3}{4}$ and $\tan\theta=\frac{9}{2}$

Modelling a drone in 3D: finding the z component of the thrust vector knowing pitch (about x) and roll (about y) angles.

Show that $2\cos(mp-nq)$ is one of the values of $\left( \frac{x^m}{y^n}+\frac{y^n}{x^m} \right)$

How to solve $x=8\sin x$?

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