Question

Can we plug a linear sequence of real numbers into the sine function such that the resulting sequence will be a one-to-one sequence?

score 46 · Answer 1 · 2026-03-25 22:03:34

46

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Can we plug a linear sequence of real numbers into the sine function such that the resulting sequence will be a one-to-one sequence?

Published on 25 Mar 2026 - 22:03

score 187 · Answer 2 · 2018-07-14 19:43:54

187

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$\int_{\theta}^{\theta+\pi}r(u)\cos u\, du=-\lambda\sin\theta$ and $\int_\theta^{\theta+\pi}r(u)\sin u\;du=\lambda\cos\theta$ for certain $r(u)$

Published on 14 Jul 2018 - 19:43

score 1k · Answer 3 · 2026-03-26 17:47:41

1k

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Minimum value of $\frac{b+1}{a+b-2}$

Published on 26 Mar 2026 - 17:47

score 247 · Answer 4 · 2026-03-26 19:01:08

247

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Problem related to Incircle of a triangle

Published on 26 Mar 2026 - 19:01

score 66 · Answer 5 · 2018-07-15 16:32:38

66

Views

Finding the minimum of a

Published on 15 Jul 2018 - 16:32

score 70 · Answer 6 · 2018-07-15 18:27:02

70

Views

Finding Values of $x$ satisfying $\max{(3 \cos \alpha + 4 \cos \Bigl( \alpha - x \Bigl)} = 7$

Published on 15 Jul 2018 - 18:27

score 138 · Answer 7 · 2026-03-25 12:16:16

138

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Some questions about trigonometric polynomials, Vieta's relations and correct integer parameters for roots

Published on 25 Mar 2026 - 12:16

score 41.6k · Answer 8 · 2026-03-28 16:57:03

41.6k

Views

How to calculate the sine manually, without any rules, calculator or anything else?

Published on 28 Mar 2026 - 16:57

score 78 · Answer 9 · 2018-07-16 13:21:47

78

Views

Powers of trigonometric functions

Published on 16 Jul 2018 - 13:21

score 1.1k · Answer 10 · 2026-03-26 21:12:27

1.1k

Views

Evaluate $\int_{|z|=4}\tan z dz$

Published on 26 Mar 2026 - 21:12

score 749 · Answer 11 · 2026-03-25 07:44:58

749

Views

In trig substitutions, why favor $\sin$, $\tan$, $\sec$, $\sinh$, $\cosh$, $\tanh$ over $\cos$, $\cot$, $\csc$, etc?

Published on 25 Mar 2026 - 7:44

score 43 · Answer 12 · 2026-03-25 06:03:23

43

Views

Let $K$ a operator of continued fraction.Is this true?

Published on 25 Mar 2026 - 6:03

score 813 · Answer 13 · 2026-03-25 07:41:58

813

Views

Analogies between $(\tan, \sec)$ and $(\sinh, \cosh)$

Published on 25 Mar 2026 - 7:41

score 1.1k · Answer 14 · 2026-03-25 11:16:14

1.1k

Views

$\tan(a) = 3/4$ and $\tan (b) = 5/12$, what is $\cos(a+b)$

Published on 25 Mar 2026 - 11:16

score 218 · Answer 15 · 2026-03-25 11:11:48

218

Views

$\cos(a)=4/5$, $\sin(b)=12/13$, what is $\sin(c)$?

Published on 25 Mar 2026 - 11:11

List Question

Can we plug a linear sequence of real numbers into the sine function such that the resulting sequence will be a one-to-one sequence?

$\int_{\theta}^{\theta+\pi}r(u)\cos u\, du=-\lambda\sin\theta$ and $\int_\theta^{\theta+\pi}r(u)\sin u\;du=\lambda\cos\theta$ for certain $r(u)$

Minimum value of $\frac{b+1}{a+b-2}$

Problem related to Incircle of a triangle

Finding the minimum of a

Finding Values of $x$ satisfying $\max{(3 \cos \alpha + 4 \cos \Bigl( \alpha - x \Bigl)} = 7$

Some questions about trigonometric polynomials, Vieta's relations and correct integer parameters for roots

How to calculate the sine manually, without any rules, calculator or anything else?

Powers of trigonometric functions

Evaluate $\int_{|z|=4}\tan z dz$

In trig substitutions, why favor $\sin$, $\tan$, $\sec$, $\sinh$, $\cosh$, $\tanh$ over $\cos$, $\cot$, $\csc$, etc?

Let $K$ a operator of continued fraction.Is this true?

Analogies between $(\tan, \sec)$ and $(\sinh, \cosh)$

$\tan(a) = 3/4$ and $\tan (b) = 5/12$, what is $\cos(a+b)$

$\cos(a)=4/5$, $\sin(b)=12/13$, what is $\sin(c)$?

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