Question

On Cotangents, Tangents, Secants, And Cosecants On Unit Circles.

score 2.5k · Answer 1 · 2018-06-25 08:30:08

2.5k

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On Cotangents, Tangents, Secants, And Cosecants On Unit Circles.

Published on 25 Jun 2018 - 8:30

score 1.1k · Answer 2 · 2018-06-25 09:03:23

1.1k

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On The Range Of The Tangent

Published on 25 Jun 2018 - 9:03

score 157 · Answer 3 · 2026-03-26 14:31:39

157

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Is there any scalene non right angled triangle having its sides as simple rational numbers and whose angles have very simple trigonometric ratios?

Published on 26 Mar 2026 - 14:31

score 223 · Answer 4 · 2026-03-28 05:28:43

223

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Evaluate $\int_{-\infty}^\infty e^{x/2}\operatorname{sech}(x)\,dx$ without Residue Calculus

Published on 28 Mar 2026 - 5:28

score 806 · Answer 5 · 2026-03-26 09:26:55

806

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Proving the Trig Identities $\sin(-\theta)=-\sin(\theta)$ and $\cos(-\theta)=\cos(\theta)$

Published on 26 Mar 2026 - 9:26

score 133 · Answer 6 · 2026-03-26 16:56:44

133

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in traingle ABC, D lies on BC. If $\angle$ DAC = 3 $\angle$ ACD and $\angle$ ADC = 2 $\angle$ ACD, show that AB+AD=BC .

Published on 26 Mar 2026 - 16:56

score 142 · Answer 7 · 2018-06-26 11:34:25

142

Views

Finding area under a curve without using trigonometrics

Published on 26 Jun 2018 - 11:34

score 113 · Answer 8 · 2026-03-25 01:16:48

113

Views

I found a weird occurrence with equal angle polygons and sine waves and i need help proving it

Published on 25 Mar 2026 - 1:16

score 2.5k · Answer 9 · 2026-03-26 16:06:46

2.5k

Views

trigonometry finding 2 possible $\cos$ values of an angle

Published on 26 Mar 2026 - 16:06

score 1.3k · Answer 10 · 2018-06-27 00:07:57

1.3k

Views

Why is $\sin(155^\circ)$ same as $\sin(25^\circ)$?

Published on 27 Jun 2018 - 0:07

score 52 · Answer 11 · 2026-03-26 21:10:12

52

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How to find the maximum value of $a_1 \cos(w_1 t + \phi_1) + a_2 \cos(w_2 t + \phi_2)$?

Published on 26 Mar 2026 - 21:10

score 518 · Answer 12 · 2018-06-27 04:20:06

518

Views

Proving $\frac{\tan x+\sec x-1}{\tan x-\sec x+1}=\frac{1+\sin x}{\cos x}$

Published on 27 Jun 2018 - 4:20

score 2.9k · Answer 13 · 2026-03-25 01:18:34

2.9k

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Find $x$ if $\frac1{\sin1°\sin2°}+\frac1{\sin2°\sin3°}+\cdots+\frac1{\sin89°\sin90°} = \cot x\cdot\csc x$

Published on 25 Mar 2026 - 1:18

score 37 · Answer 14 · 2026-03-27 03:45:15

37

Views

$2D$ shapes/rectangles viewed in $3D$ space

Published on 27 Mar 2026 - 3:45

score 275 · Answer 15 · 2026-03-25 00:02:54

275

Views

How to make Sum of sinusoidal signals with different frequencies have different absolute values of positive peak and negative peak?

Published on 25 Mar 2026 - 0:02

List Question

On Cotangents, Tangents, Secants, And Cosecants On Unit Circles.

On The Range Of The Tangent

Is there any scalene non right angled triangle having its sides as simple rational numbers and whose angles have very simple trigonometric ratios?

Evaluate $\int_{-\infty}^\infty e^{x/2}\operatorname{sech}(x)\,dx$ without Residue Calculus

Proving the Trig Identities $\sin(-\theta)=-\sin(\theta)$ and $\cos(-\theta)=\cos(\theta)$

in traingle ABC, D lies on BC. If $\angle$ DAC = 3 $\angle$ ACD and $\angle$ ADC = 2 $\angle$ ACD, show that AB+AD=BC .

Finding area under a curve without using trigonometrics

I found a weird occurrence with equal angle polygons and sine waves and i need help proving it

trigonometry finding 2 possible $\cos$ values of an angle

Why is $\sin(155^\circ)$ same as $\sin(25^\circ)$?

How to find the maximum value of $a_1 \cos(w_1 t + \phi_1) + a_2 \cos(w_2 t + \phi_2)$?

Proving $\frac{\tan x+\sec x-1}{\tan x-\sec x+1}=\frac{1+\sin x}{\cos x}$

Find $x$ if $\frac1{\sin1°\sin2°}+\frac1{\sin2°\sin3°}+\cdots+\frac1{\sin89°\sin90°} = \cot x\cdot\csc x$

$2D$ shapes/rectangles viewed in $3D$ space

How to make Sum of sinusoidal signals with different frequencies have different absolute values of positive peak and negative peak?

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