Question

Signed distance along a rotated coordinate

score 239 · Answer 1 · 2026-04-13 07:39:30

239

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Signed distance along a rotated coordinate

Published on 13 Apr 2026 - 7:39

score 1k · Answer 2 · 2026-04-17 09:56:39

1k

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Find chord length given equations for circle and line

Published on 17 Apr 2026 - 9:56

score 212 · Answer 3 · 2026-04-15 21:32:07

212

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Determine the location an aerial photo was taken from

Published on 15 Apr 2026 - 21:32

score 326 · Answer 4 · 2026-04-09 04:09:57

326

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show this nice trigonometric identiy

Published on 09 Apr 2026 - 4:09

score 127 · Answer 5 · 2026-04-14 15:29:34

127

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Finding exact solutions to $\sin\left(\frac{\pi}{3} - x\right) - \cos\left(\frac{\pi}{6} + x\right) $

Published on 14 Apr 2026 - 15:29

score 596 · Answer 6 · 2026-04-12 14:28:44

596

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Calculating the angle of rotation

Published on 12 Apr 2026 - 14:28

score 534 · Answer 7 · 2026-04-13 18:04:15

534

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A last year Putnam question maximum $\sum{\cos 3x}$

Published on 13 Apr 2026 - 18:04

score 703 · Answer 8 · 2026-04-16 20:19:26

703

Views

How to evaluate $\lim_{\Delta t\to0}\left[ \frac{v\sin\Delta\theta}{\Delta t} \right]$?

Published on 16 Apr 2026 - 20:19

score 121 · Answer 9 · 2026-04-15 13:19:43

121

Views

identities other than $(a-b)^2=(a+b)^2-4ab$?

Published on 15 Apr 2026 - 13:19

score 109 · Answer 10 · 2026-04-12 22:46:07

109

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Given two angle and a segment, can you find $h$?

Published on 12 Apr 2026 - 22:46

score 208 · Answer 11 · 2026-04-14 14:57:06

208

Views

When asked to find a coterminal angle, can you combine radians and degrees?

Published on 14 Apr 2026 - 14:57

score 354 · Answer 12 · 2026-04-12 10:11:05

354

Views

Coordinate Equation of Piston Motion

Published on 12 Apr 2026 - 10:11

score 81 · Answer 13 · 2026-04-13 15:33:21

81

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$\sin\left(\frac{\pi}{16}\right)$ not working on Ti-89

Published on 13 Apr 2026 - 15:33

score 146 · Answer 14 · 2026-04-16 15:53:26

146

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Proof of the trigonometric identity $\frac{1 + \tan x}{1 + \cot x} = \frac{1 - \tan x}{\cot x - 1}$

Published on 16 Apr 2026 - 15:53

score 122 · Answer 15 · 2026-04-16 19:31:05

If $A+B+C=180$, then $\frac{\sin2A+\sin2B+\sin2C}{\cos A+\cos B+\cos C-1}=8\cos\frac A2 \cos\frac B2 \cos\frac C2$

List Question

Signed distance along a rotated coordinate

Find chord length given equations for circle and line

Determine the location an aerial photo was taken from

show this nice trigonometric identiy

Finding exact solutions to $\sin\left(\frac{\pi}{3} - x\right) - \cos\left(\frac{\pi}{6} + x\right) $

Calculating the angle of rotation

A last year Putnam question maximum $\sum{\cos 3x}$

How to evaluate $\lim_{\Delta t\to0}\left[ \frac{v\sin\Delta\theta}{\Delta t} \right]$?

identities other than $(a-b)^2=(a+b)^2-4ab$?

Given two angle and a segment, can you find $h$?

When asked to find a coterminal angle, can you combine radians and degrees?

Coordinate Equation of Piston Motion

$\sin\left(\frac{\pi}{16}\right)$ not working on Ti-89

Proof of the trigonometric identity $\frac{1 + \tan x}{1 + \cot x} = \frac{1 - \tan x}{\cot x - 1}$

If $A+B+C=180$, then $\frac{\sin2A+\sin2B+\sin2C}{\cos A+\cos B+\cos C-1}=8\cos\frac A2 \cos\frac B2 \cos\frac C2$

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