Question

Transforming a combination of sine and cosine functions to either sine or cosine function

score 7.4k · Answer 1 · 2018-07-08 14:07:03

7.4k

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Transforming a combination of sine and cosine functions to either sine or cosine function

Published on 08 Jul 2018 - 14:07

score 242 · Answer 2 · 2026-04-05 18:38:58

242

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Independent solutions to $\sin(\theta) = -\sin(\phi)$ and $\cos(\theta) = -\cos(\phi)$

Published on 05 Apr 2026 - 18:38

score 60 · Answer 3 · 2026-03-25 17:24:38

60

Views

Inverse involving polynomial and trigonometric understanding

Published on 25 Mar 2026 - 17:24

score 38 · Answer 4 · 2018-07-08 16:13:15

38

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Calculus trig right angle intersect

Published on 08 Jul 2018 - 16:13

score 2.4k · Answer 5 · 2018-07-08 18:13:44

2.4k

Views

Maxima and minima of $\operatorname{sinc}$ function

Published on 08 Jul 2018 - 18:13

score 180 · Answer 6 · 2026-03-26 04:52:24

180

Views

Rotation of general conic equation - angle $\theta$ quadrant

Published on 26 Mar 2026 - 4:52

score 181 · Answer 7 · 2026-03-26 12:37:56

181

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How can I solve $\cos\left(\frac{1}{2}(\arctan\left(\frac{8}{15}\right)\right)$ using the cosine Half Angle Identity?

Published on 26 Mar 2026 - 12:37

score 66 · Answer 8 · 2018-07-09 08:56:32

66

Views

Why this approach in proving the identity $\sin 2\omega+\sin 2\phi+\sin 2\psi= 4 \sin\omega \sin\phi \sin\psi$ does not work?

Published on 09 Jul 2018 - 8:56

score 1.6k · Answer 9 · 2018-07-10 03:37:00

1.6k

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In $\triangle ABC$, we have $AB = 14$, $BC = 16$, and $\angle A = 60^\circ$. Find the sum of all possible values of $AC$.

Published on 10 Jul 2018 - 3:37

score 82 · Answer 10 · 2026-04-06 05:52:14

82

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Trigonometric inequality with Tangent

Published on 06 Apr 2026 - 5:52

score 80 · Answer 11 · 2018-07-10 10:09:59

80

Views

What is the value of this trigonometric function?

Published on 10 Jul 2018 - 10:09

score 255 · Answer 12 · 2018-07-10 15:38:04

255

Views

How would you prove that $\tan({\alpha}) +2\tan({2\alpha})+4\tan({4\alpha})+8\cot (8\alpha) = \cot(\alpha )$?

Published on 10 Jul 2018 - 15:38

score 103 · Answer 13 · 2026-03-26 12:38:28

103

Views

How to find co-ordinates of a line(of specific length) that touches two lines of different slope?

Published on 26 Mar 2026 - 12:38

score 280 · Answer 14 · 2018-07-10 23:03:10

280

Views

Linear equation of the Tangent function

Published on 10 Jul 2018 - 23:03

score 70 · Answer 15 · 2018-07-11 02:42:17

70

Views

Calculate angle DPA (Congruent and Similar triangles)

Published on 11 Jul 2018 - 2:42

List Question

Transforming a combination of sine and cosine functions to either sine or cosine function

Independent solutions to $\sin(\theta) = -\sin(\phi)$ and $\cos(\theta) = -\cos(\phi)$

Inverse involving polynomial and trigonometric understanding

Calculus trig right angle intersect

Maxima and minima of $\operatorname{sinc}$ function

Rotation of general conic equation - angle $\theta$ quadrant

How can I solve $\cos\left(\frac{1}{2}(\arctan\left(\frac{8}{15}\right)\right)$ using the cosine Half Angle Identity?

Why this approach in proving the identity $\sin 2\omega+\sin 2\phi+\sin 2\psi= 4 \sin\omega \sin\phi \sin\psi$ does not work?

In $\triangle ABC$, we have $AB = 14$, $BC = 16$, and $\angle A = 60^\circ$. Find the sum of all possible values of $AC$.

Trigonometric inequality with Tangent

What is the value of this trigonometric function?

How would you prove that $\tan({\alpha}) +2\tan({2\alpha})+4\tan({4\alpha})+8\cot (8\alpha) = \cot(\alpha )$?

How to find co-ordinates of a line(of specific length) that touches two lines of different slope?

Linear equation of the Tangent function

Calculate angle DPA (Congruent and Similar triangles)

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