Question

Finding classes of non-piecewise functions which have graphs that resemble sine curves but contain periodic hole discontinuities

score 81 · Answer 1 · 2026-04-15 10:12:32

81

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Finding classes of non-piecewise functions which have graphs that resemble sine curves but contain periodic hole discontinuities

Published on 15 Apr 2026 - 10:12

score 75 · Answer 2 · 2026-04-16 03:31:04

75

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Find coordinates from the length of two lines

Published on 16 Apr 2026 - 3:31

score 53 · Answer 3 · 2026-04-16 08:56:53

53

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Why is $2-2\cos(x) = 4\sin^2(\frac{x}{2})$?

Published on 16 Apr 2026 - 8:56

score 92 · Answer 4 · 2026-04-15 04:35:35

92

Views

Finding solutions to $3\tan^2\theta-\tan\theta-14=0$ within $0\leq\theta\leq360^\circ$

Published on 15 Apr 2026 - 4:35

score 585 · Answer 5 · 2026-04-13 12:18:24

585

Views

What is $\arctan(k\cdot\tan(x))$? Is there any simplification for this?

Published on 13 Apr 2026 - 12:18

score 83 · Answer 6 · 2026-04-16 14:39:39

83

Views

value of sinx + cosx + 3 greater than or less than 1

Published on 16 Apr 2026 - 14:39

score 164 · Answer 7 · 2026-04-15 20:46:51

164

Views

Write periodic sequence of numbers with trigonometric functions.

Published on 15 Apr 2026 - 20:46

score 46 · Answer 8 · 2026-04-13 14:11:30

46

Views

How do I prove $\frac{\sin x + \csc y}{\sin y + \csc x} = \csc y \sin x$?

Published on 13 Apr 2026 - 14:11

score 79 · Answer 9 · 2026-04-16 14:10:54

79

Views

Sign of the series $\sum_{n=1}^\infty\frac{\sin(n\alpha)-\sin(n\beta)+\sin(n(\beta-\alpha))}{n^2}$

Published on 16 Apr 2026 - 14:10

score 190 · Answer 10 · 2026-03-25 20:18:12

190

Views

Tangent and transcendental numbers

Published on 25 Mar 2026 - 20:18

score 78 · Answer 11 · 2026-04-16 16:31:05

78

Views

Solving $\cos(x)\cos(2x) = \cos(3x)$

Published on 16 Apr 2026 - 16:31

score 1.4k · Answer 12 · 2026-04-13 05:07:08

1.4k

Views

Extend line in xy-plane when start/endpoint and direction is known

Published on 13 Apr 2026 - 5:07

score 71 · Answer 13 · 2026-04-16 20:41:08

71

Views

Can you prove this? $2+2\cos(x-y)=4\cos^2\left(\frac{x-y}{2}\right)$

Published on 16 Apr 2026 - 20:41

score 993 · Answer 14 · 2026-04-17 05:41:23

993

Views

Solving $\sin(4x)=\cos(3x)$

Published on 17 Apr 2026 - 5:41

score 73 · Answer 15 · 2026-04-16 20:31:55

73

Views

Is there any simpler way to find $\sin 2 y$ from $\cos(x+y)=\tfrac13$ and $\cos(x-y)=\tfrac15$?

Published on 16 Apr 2026 - 20:31

List Question

Finding classes of non-piecewise functions which have graphs that resemble sine curves but contain periodic hole discontinuities

Find coordinates from the length of two lines

Why is $2-2\cos(x) = 4\sin^2(\frac{x}{2})$?

Finding solutions to $3\tan^2\theta-\tan\theta-14=0$ within $0\leq\theta\leq360^\circ$

What is $\arctan(k\cdot\tan(x))$? Is there any simplification for this?

value of sinx + cosx + 3 greater than or less than 1

Write periodic sequence of numbers with trigonometric functions.

How do I prove $\frac{\sin x + \csc y}{\sin y + \csc x} = \csc y \sin x$?

Sign of the series $\sum_{n=1}^\infty\frac{\sin(n\alpha)-\sin(n\beta)+\sin(n(\beta-\alpha))}{n^2}$

Tangent and transcendental numbers

Solving $\cos(x)\cos(2x) = \cos(3x)$

Extend line in xy-plane when start/endpoint and direction is known

Can you prove this? $2+2\cos(x-y)=4\cos^2\left(\frac{x-y}{2}\right)$

Solving $\sin(4x)=\cos(3x)$

Is there any simpler way to find $\sin 2 y$ from $\cos(x+y)=\tfrac13$ and $\cos(x-y)=\tfrac15$?

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