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Calculus and Sin function

score 44 · Answer 1 · 2018-04-01 06:24:47

44

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Calculus and Sin function

Published on 01 Apr 2018 - 6:24

score 286 · Answer 2 · 2026-02-22 23:41:55

286

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$\sup${$\frac{\sin nx}{\sin x}:n\in\mathbb Z$}: Upper boundary of $\frac{\sin nx}{\sin x}$

Published on 22 Feb 2026 - 23:41

score 2.2k · Answer 3 · 2026-03-25 06:01:51

2.2k

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How to derive sides for 30-60-90 triangle?

Published on 25 Mar 2026 - 6:01

score 27 · Answer 4 · 2026-03-25 14:22:03

27

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Orthogonality relation seems to result in an indefinite case

Published on 25 Mar 2026 - 14:22

score 168 · Answer 5 · 2026-03-25 03:22:56

168

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Finding the range and domain of an inverse trigonometric function.

Published on 25 Mar 2026 - 3:22

score 87 · Answer 6 · 2018-04-01 20:22:37

87

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Evaluating $\sin\left(\arccos\frac12+\arccos\frac{7}{25}\right)$

Published on 01 Apr 2018 - 20:22

score 2k · Answer 7 · 2026-03-25 16:40:00

2k

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Proof of the Pythagorean Theorem without using the concept of area?

Published on 25 Mar 2026 - 16:40

score 47 · Answer 8 · 2018-04-02 00:30:05

47

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How to switch from sin wave to cos wave?

Published on 02 Apr 2018 - 0:30

score 112 · Answer 9 · 2018-04-02 03:34:33

112

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Visual representation of $\sin^2 x + \cos^2 x = 1$

Published on 02 Apr 2018 - 3:34

score 1.2k · Answer 10 · 2018-04-02 04:24:39

1.2k

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Evaluating trigonometric limit $\csc^2(2x) - \frac{1}{4x^2}$

Published on 02 Apr 2018 - 4:24

score 744 · Answer 11 · 2026-03-24 20:33:25

744

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Find and classify the critical points of $f(x,y)=\ln{(2+\sin{xy})}$

Published on 24 Mar 2026 - 20:33

score 92 · Answer 12 · 2018-04-02 09:51:22

92

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Extrema of $(\tan{x})^{\sin{2x}}$ on $(0,\frac{\pi}{2})$ interval

Published on 02 Apr 2018 - 9:51

score 41 · Answer 13 · 2018-04-02 15:21:42

41

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Can this trigonometric relation be solved?

Published on 02 Apr 2018 - 15:21

score 116 · Answer 14 · 2018-04-02 18:24:51

116

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How to show $\tan \frac{\pi}{7} < \sin\frac{5\pi}{18}$ without a calculator?

Published on 02 Apr 2018 - 18:24

score 43 · Answer 15 · 2018-04-02 19:41:35

43

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Find the domain of $\ln{\left(2\tan{\left(3x+\frac\pi 3\right)}-2\right)}$

Published on 02 Apr 2018 - 19:41

List Question

Calculus and Sin function

$\sup${$\frac{\sin nx}{\sin x}:n\in\mathbb Z$}: Upper boundary of $\frac{\sin nx}{\sin x}$

How to derive sides for 30-60-90 triangle?

Orthogonality relation seems to result in an indefinite case

Finding the range and domain of an inverse trigonometric function.

Evaluating $\sin\left(\arccos\frac12+\arccos\frac{7}{25}\right)$

Proof of the Pythagorean Theorem without using the concept of area?

How to switch from sin wave to cos wave?

Visual representation of $\sin^2 x + \cos^2 x = 1$

Evaluating trigonometric limit $\csc^2(2x) - \frac{1}{4x^2}$

Find and classify the critical points of $f(x,y)=\ln{(2+\sin{xy})}$

Extrema of $(\tan{x})^{\sin{2x}}$ on $(0,\frac{\pi}{2})$ interval

Can this trigonometric relation be solved?

How to show $\tan \frac{\pi}{7} < \sin\frac{5\pi}{18}$ without a calculator?

Find the domain of $\ln{\left(2\tan{\left(3x+\frac\pi 3\right)}-2\right)}$

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