Question

Find the product of $\frac{12 rad}{1 min} * \frac{1 rev}{2\pi rad} * \frac{60 min}{1 hr}$

score 41 · Answer 1 · 2026-04-16 02:41:22

41

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Find the product of $\frac{12 rad}{1 min} * \frac{1 rev}{2\pi rad} * \frac{60 min}{1 hr}$

Published on 16 Apr 2026 - 2:41

score 1.6k · Answer 2 · 2026-04-16 05:40:57

1.6k

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Prove that solution of the equation $8x^3-4x^2-4x+1= 0$ has roots $\cos\frac{\pi}{7},\cos\frac{3 \pi}{7},\cos\frac{5 \pi}{7}$

Published on 16 Apr 2026 - 5:40

score 58 · Answer 3 · 2026-04-17 03:07:33

58

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trigonometry heights and distances

Published on 17 Apr 2026 - 3:07

score 2.2k · Answer 4 · 2026-04-15 08:40:58

2.2k

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The following diagram represents a large Ferris wheel, with a diameter of 100 meters.

Published on 15 Apr 2026 - 8:40

score 1.8k · Answer 5 · 2026-04-13 23:10:52

1.8k

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Express $\cos 4x$ in terms of only $\sin 2x$ and hence solve the trigonometric equation

Published on 13 Apr 2026 - 23:10

score 44 · Answer 6 · 2026-04-21 16:40:51

44

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Reference for "tangent of half angle equals cosecant minus cotangent"

Published on 21 Apr 2026 - 16:40

score 254 · Answer 7 · 2026-04-12 10:48:54

254

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Calculating exact trig value with double angle formula leads me to find two values for cot(pi/12) when there is only one.

Published on 12 Apr 2026 - 10:48

score 247 · Answer 8 · 2026-04-16 20:53:51

247

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Evaluate $\sum\limits_{n=0}^{\infty} \frac{\cos(nx)}{2^n}$ where $\cos x = \frac15$

Published on 16 Apr 2026 - 20:53

score 120 · Answer 9 · 2026-04-17 10:33:07

120

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Solve $\sin x + \cos x = \sqrt{1+k}$ for $\sin 2x$, $\sin x-\cos x$, and $\tan x$ in terms of $k$

Published on 17 Apr 2026 - 10:33

score 64 · Answer 10 · 2026-04-10 08:54:11

64

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Can this system of equations have unique solutions?

Published on 10 Apr 2026 - 8:54

score 94 · Answer 11 · 2026-04-16 06:35:10

94

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Why is this true? $\int \frac{du}{\tan u \cos^2 u} = \int \frac{d(\tan u)}{\tan u}$

Published on 16 Apr 2026 - 6:35

score 174 · Answer 12 · 2026-04-12 07:14:49

174

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Fraction represented by shaded area

Published on 12 Apr 2026 - 7:14

score 81 · Answer 13 · 2026-04-13 13:16:03

81

Views

Trigonometric deducing

Published on 13 Apr 2026 - 13:16

score 149 · Answer 14 · 2026-03-25 23:11:06

149

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Trig identity to reduce:$\sin^2(u)\cos^2(v)+\sin^2(u)\sin^2(v)+\cos^2(u)\cos^2(v)+\cos^2(u)\sin^2(v)\ $

Published on 25 Mar 2026 - 23:11

score 37 · Answer 15 · 2026-04-11 07:57:53

37

Views

Vector/Trig Question. Help needed

Published on 11 Apr 2026 - 7:57

List Question

Find the product of $\frac{12 rad}{1 min} * \frac{1 rev}{2\pi rad} * \frac{60 min}{1 hr}$

Prove that solution of the equation $8x^3-4x^2-4x+1= 0$ has roots $\cos\frac{\pi}{7},\cos\frac{3 \pi}{7},\cos\frac{5 \pi}{7}$

trigonometry heights and distances

The following diagram represents a large Ferris wheel, with a diameter of 100 meters.

Express $\cos 4x$ in terms of only $\sin 2x$ and hence solve the trigonometric equation

Reference for "tangent of half angle equals cosecant minus cotangent"

Calculating exact trig value with double angle formula leads me to find two values for cot(pi/12) when there is only one.

Evaluate $\sum\limits_{n=0}^{\infty} \frac{\cos(nx)}{2^n}$ where $\cos x = \frac15$

Solve $\sin x + \cos x = \sqrt{1+k}$ for $\sin 2x$, $\sin x-\cos x$, and $\tan x$ in terms of $k$

Can this system of equations have unique solutions?

Why is this true? $\int \frac{du}{\tan u \cos^2 u} = \int \frac{d(\tan u)}{\tan u}$

Fraction represented by shaded area

Trigonometric deducing

Trig identity to reduce:$\sin^2(u)\cos^2(v)+\sin^2(u)\sin^2(v)+\cos^2(u)\cos^2(v)+\cos^2(u)\sin^2(v)\ $

Vector/Trig Question. Help needed

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