Question

Getting value of $\sin A \sin B$

score 83 · Answer 1 · 2026-04-11 09:45:31

83

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Getting value of $\sin A \sin B$

Published on 11 Apr 2026 - 9:45

score 147 · Answer 2 · 2018-09-27 22:07:08

147

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Maximum distance of a point from a triangle

Published on 27 Sep 2018 - 22:07

score 789 · Answer 3 · 2026-04-08 17:47:40

789

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Understanding proof of Ptolemy's theorem - how does it connect to a circle?

Published on 08 Apr 2026 - 17:47

score 90 · Answer 4 · 2018-09-28 14:13:13

90

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Solving for $c$: $a = \frac {b - \cos(c)}{\cos^2(c)}$

Published on 28 Sep 2018 - 14:13

score 87 · Answer 5 · 2026-04-10 21:27:05

87

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How to solve $y=\tan(θ)$ for $θ$?

Published on 10 Apr 2026 - 21:27

score 329 · Answer 6 · 2026-04-11 10:06:58

329

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Taylor approximation of cos function

Published on 11 Apr 2026 - 10:06

score 315 · Answer 7 · 2018-09-28 23:30:52

315

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Can I simplify $n\cdot r\cdot \sin(90^\circ-\frac{180^\circ}{n})\sqrt{r^2-r^2\sin^2(90^\circ-\frac{180^\circ}{n})}$ further?

Published on 28 Sep 2018 - 23:30

score 88 · Answer 8 · 2026-04-01 23:53:09

88

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Pre-calculus Complex coordinate law of cosine help

Published on 01 Apr 2026 - 23:53

score 102 · Answer 9 · 2026-04-01 01:40:07

102

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Find a polynomial in terms of cos $θ$

Published on 01 Apr 2026 - 1:40

score 43 · Answer 10 · 2018-09-29 08:38:19

43

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Sum of 3 angles

Published on 29 Sep 2018 - 8:38

score 125 · Answer 11 · 2026-03-27 15:20:12

125

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Find the minimum value of $\sin^2\theta+\cos^2\theta+\csc^2\theta+\sec^2\theta+\tan^2\theta+\cot^2 \theta$

Published on 27 Mar 2026 - 15:20

score 95 · Answer 12 · 2026-04-10 16:56:06

95

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How to evaluate $\arctan(1/\tan(-x))$?

Published on 10 Apr 2026 - 16:56

score 126 · Answer 13 · 2018-09-29 20:01:16

What is $\tan(\;f(1)+f(2)+\cdots+f(21)\;)$, where $f(x) = \operatorname{arctan}\left(\frac{1}{x^2+x+1}\right)$?

score 47 · Answer 14 · 2018-09-29 21:52:12

47

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Trigonometric Equation - $\sin(a)+\cos(a)=1.2$

Published on 29 Sep 2018 - 21:52

score 217 · Answer 15 · 2018-09-29 23:55:24

217

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Trigonometric Identities - $\sin(x-2\pi)\cos((3\pi/2)-x)+\tan(\pi-x)\tan((3\pi/2)+x)$

Published on 29 Sep 2018 - 23:55

List Question

Getting value of $\sin A \sin B$

Maximum distance of a point from a triangle

Understanding proof of Ptolemy's theorem - how does it connect to a circle?

Solving for $c$: $a = \frac {b - \cos(c)}{\cos^2(c)}$

How to solve $y=\tan(θ)$ for $θ$?

Taylor approximation of cos function

Can I simplify $n\cdot r\cdot \sin(90^\circ-\frac{180^\circ}{n})\sqrt{r^2-r^2\sin^2(90^\circ-\frac{180^\circ}{n})}$ further?

Pre-calculus Complex coordinate law of cosine help

Find a polynomial in terms of cos $θ$

Sum of 3 angles

Find the minimum value of $\sin^2\theta+\cos^2\theta+\csc^2\theta+\sec^2\theta+\tan^2\theta+\cot^2 \theta$

How to evaluate $\arctan(1/\tan(-x))$?

What is $\tan(\;f(1)+f(2)+\cdots+f(21)\;)$, where $f(x) = \operatorname{arctan}\left(\frac{1}{x^2+x+1}\right)$?

Trigonometric Equation - $\sin(a)+\cos(a)=1.2$

Trigonometric Identities - $\sin(x-2\pi)\cos((3\pi/2)-x)+\tan(\pi-x)\tan((3\pi/2)+x)$

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