Question

Difference between $\frac {2π} {b}$ versus $2πb$

score 83 · Answer 1 · 2026-03-25 21:45:06

83

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Difference between $\frac {2π} {b}$ versus $2πb$

Published on 25 Mar 2026 - 21:45

score 157 · Answer 2 · 2026-03-25 12:33:31

157

Views

$\sin(k\pi/n)$ an integer multiple of $\sin(\pi/n)$

Published on 25 Mar 2026 - 12:33

score 100 · Answer 3 · 2018-06-06 01:44:41

100

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Area of a Triangle in a Circle (Given some angles)

Published on 06 Jun 2018 - 1:44

score 179 · Answer 4 · 2018-06-06 02:16:59

179

Views

How can I simplify $\cos(2x) + \frac{1}{2}\sin(4x) - \frac{1}{2}\cos(4x)$ into a single expression?

Published on 06 Jun 2018 - 2:16

score 198 · Answer 5 · 2026-03-26 22:48:38

198

Views

Find a point related to triangle.

Published on 26 Mar 2026 - 22:48

score 108 · Answer 6 · 2018-06-06 18:06:18

108

Views

Simplifying $\frac{\sin\alpha\cos^2\beta}{\sin\beta}+\frac{\sin\beta\cos^2\alpha}{\sin\alpha}$

Published on 06 Jun 2018 - 18:06

score 70 · Answer 7 · 2026-04-04 14:41:58

70

Views

Show there exists $x\in[0,2\pi]$ such that the following inequality holds

Published on 04 Apr 2026 - 14:41

score 72 · Answer 8 · 2026-04-02 05:34:29

If α and β are 2 roots of $a \tan θ+b \sec θ=c$ then how the roots of $(a^2-b^2)\tan^2θ-2ac \tanθ+(c^2-b^2)=0$ are $\tan α$ and $\tan β$?

score 1k · Answer 9 · 2018-06-07 15:10:41

1k

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Cool way of finding $\cos\left(\frac{\pi}{5}\right)$

Published on 07 Jun 2018 - 15:10

score 106 · Answer 10 · 2018-06-07 16:42:21

106

Views

Solving $2 \sin^2x + 6 \sin^2 \frac 12x = 3$

Published on 07 Jun 2018 - 16:42

score 94 · Answer 11 · 2026-03-25 09:24:14

94

Views

Sine wave which x axis follows a function f(x)

Published on 25 Mar 2026 - 9:24

score 43 · Answer 12 · 2026-03-25 04:43:27

43

Views

How to see intuitively that for large values of $x$, the tangent from 1st quad. to 3rd quad. on cubic curve makes $270^\circ$.

Published on 25 Mar 2026 - 4:43

score 82 · Answer 13 · 2018-06-08 06:31:37

82

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Prove identity: $\sin \alpha= \frac{2\tan \frac{\alpha}{2}}{1+\tan^2 \frac{\alpha}{2}} $

Published on 08 Jun 2018 - 6:31

score 2.3k · Answer 14 · 2026-03-25 13:55:10

2.3k

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Simplify $\arccos{\sqrt{ 2\over 3}}−\arccos{\frac{\sqrt6+1}{2\sqrt3}}$

Published on 25 Mar 2026 - 13:55

score 1.1k · Answer 15 · 2026-04-02 06:37:07

1.1k

Views

Trigonometric functions limit to complex infinity

Published on 02 Apr 2026 - 6:37

List Question

Difference between $\frac {2π} {b}$ versus $2πb$

$\sin(k\pi/n)$ an integer multiple of $\sin(\pi/n)$

Area of a Triangle in a Circle (Given some angles)

How can I simplify $\cos(2x) + \frac{1}{2}\sin(4x) - \frac{1}{2}\cos(4x)$ into a single expression?

Find a point related to triangle.

Simplifying $\frac{\sin\alpha\cos^2\beta}{\sin\beta}+\frac{\sin\beta\cos^2\alpha}{\sin\alpha}$

Show there exists $x\in[0,2\pi]$ such that the following inequality holds

If α and β are 2 roots of $a \tan θ+b \sec θ=c$ then how the roots of $(a^2-b^2)\tan^2θ-2ac \tanθ+(c^2-b^2)=0$ are $\tan α$ and $\tan β$?

Cool way of finding $\cos\left(\frac{\pi}{5}\right)$

Solving $2 \sin^2x + 6 \sin^2 \frac 12x = 3$

Sine wave which x axis follows a function f(x)

How to see intuitively that for large values of $x$, the tangent from 1st quad. to 3rd quad. on cubic curve makes $270^\circ$.

Prove identity: $\sin \alpha= \frac{2\tan \frac{\alpha}{2}}{1+\tan^2 \frac{\alpha}{2}} $

Simplify $\arccos{\sqrt{ 2\over 3}}−\arccos{\frac{\sqrt6+1}{2\sqrt3}}$

Trigonometric functions limit to complex infinity

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