Question

How to express $\theta$ in terms of $x$ where $3\sin(3\theta+x)=\frac{2.5}{\sin\theta}$?

score 534 · Answer 1 · 2018-03-03 15:39:46

534

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How to express $\theta$ in terms of $x$ where $3\sin(3\theta+x)=\frac{2.5}{\sin\theta}$?

Published on 03 Mar 2018 - 15:39

score 544 · Answer 2 · 2018-03-03 21:13:45

544

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Evaluate $ \int_{0}^{\pi/2} \frac{\sin(nx)}{\sin(x)}\,dx $

Published on 03 Mar 2018 - 21:13

score 174 · Answer 3 · 2018-03-03 21:54:17

174

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Is there a way of expanding sin(a*b)?

Published on 03 Mar 2018 - 21:54

score 224 · Answer 4 · 2018-03-03 22:30:54

224

Views

If $A+B+C = 180^{\circ}$, then show that: $\sin A = \sin B \cos C + \cos B \sin C$

Published on 03 Mar 2018 - 22:30

score 110 · Answer 5 · 2018-03-04 00:10:13

110

Views

If $A+B+C=180^{\circ}$, then show that: $\cos B=\sin A\sin C-\cos A\cos C$

Published on 04 Mar 2018 - 0:10

score 417 · Answer 6 · 2018-03-04 05:12:03

417

Views

Finding limits for $\frac{1 - \cos(x)}{x}$

Published on 04 Mar 2018 - 5:12

score 140 · Answer 7 · 2018-03-04 09:08:10

140

Views

Prove that $\int_{2017}^{2018} (\arctan(\ln(x))-\ln(\arctan(x)))\,\mathrm dx>0$

Published on 04 Mar 2018 - 9:08

score 6.8k · Answer 8 · 2026-03-25 11:53:14

6.8k

Views

Proof of cotangent rule in a triangle

Published on 25 Mar 2026 - 11:53

score 278 · Answer 9 · 2018-03-04 13:42:01

278

Views

How to show $|\sin(2x)-\sin(2a)|$ is bounded by $2|\sin(x-a)|$?

Published on 04 Mar 2018 - 13:42

score 8.1k · Answer 10 · 2018-03-04 16:21:23

8.1k

Views

How to find the area of a triangle, when only one side and angle is known?

Published on 04 Mar 2018 - 16:21

score 69 · Answer 11 · 2026-03-29 22:44:19

69

Views

Solve the equation $\sin(\theta) + c\sin(2\theta) = 0$?

Published on 29 Mar 2026 - 22:44

score 64 · Answer 12 · 2018-03-04 19:18:29

64

Views

Entry level questions about the trig function sine

Published on 04 Mar 2018 - 19:18

score 213 · Answer 13 · 2026-03-29 16:02:12

213

Views

Beautiful sum of trigonometric roots

Published on 29 Mar 2026 - 16:02

score 797 · Answer 14 · 2026-03-25 07:44:51

797

Views

What is fundamental period of sum of two discrete time sinusoidal functions with same period?

Published on 25 Mar 2026 - 7:44

score 240 · Answer 15 · 2018-03-05 02:17:04

240

Views

Find $\sin(2\theta)$ from $\sin\theta + \cos\theta$ no calculator

Published on 05 Mar 2018 - 2:17

List Question

How to express $\theta$ in terms of $x$ where $3\sin(3\theta+x)=\frac{2.5}{\sin\theta}$?

Evaluate $ \int_{0}^{\pi/2} \frac{\sin(nx)}{\sin(x)}\,dx $

Is there a way of expanding sin(a*b)?

If $A+B+C = 180^{\circ}$, then show that: $\sin A = \sin B \cos C + \cos B \sin C$

If $A+B+C=180^{\circ}$, then show that: $\cos B=\sin A\sin C-\cos A\cos C$

Finding limits for $\frac{1 - \cos(x)}{x}$

Prove that $\int_{2017}^{2018} (\arctan(\ln(x))-\ln(\arctan(x)))\,\mathrm dx>0$

Proof of cotangent rule in a triangle

How to show $|\sin(2x)-\sin(2a)|$ is bounded by $2|\sin(x-a)|$?

How to find the area of a triangle, when only one side and angle is known?

Solve the equation $\sin(\theta) + c\sin(2\theta) = 0$?

Entry level questions about the trig function sine

Beautiful sum of trigonometric roots

What is fundamental period of sum of two discrete time sinusoidal functions with same period?

Find $\sin(2\theta)$ from $\sin\theta + \cos\theta$ no calculator

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