List questions from trigonometry

Published on 10 Apr 2026 - 13:42

58

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An Inverse Cosine Problem

Published on 12 Apr 2026 - 10:00

2.9k

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Evaluate $\lim_{x \to 0} \frac{2 - \cos(3x) - \cos(4x)}{x}$

Published on 17 Apr 2026 - 2:47

105

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How do you solve $1+sin(2\theta)=0.0368$

Published on 14 Apr 2026 - 21:08

1.2k

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Solve $\cos x+8\sin x-7=0$

Published on 16 Apr 2026 - 21:16

1k

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Calculating coordinates of corners of polygon

Published on 17 Apr 2026 - 3:34

48

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Khan's proof of the derivative of the inverse cosine function

Published on 13 Apr 2026 - 15:12

424

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Using Trigonometry vs. Geometry

Published on 13 Apr 2026 - 23:24

173

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Solve $ \sin \pi x = (x+1)^2$

Published on 15 Apr 2026 - 22:17

406

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An isosceles triangle has sides of 17 centimeter and 20 centimeter and 20 centimeter. Find the magnitude of the angles trigonometry

Published on 11 Apr 2026 - 4:27

51

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Fairly simple trig question

Published on 13 Apr 2026 - 22:16

1k

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Rotate $z = 0$ plane in 3D

Published on 13 Apr 2026 - 23:39

508

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Prove this identity: $\frac{2\sin^4x+\cos^2x-2\cos^4x}{3\sin^2x-1} =1$

Published on 15 Apr 2026 - 12:39

474

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Integral of $16/(1-\cos8x)$

Published on 14 Apr 2026 - 11:57

206

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Inequality problem about sides of a triangle and the semiperimeter

Published on 09 Apr 2026 - 11:52

List Question

sin (x) + cos (x) = 0. Why this equation has only one solution set?

An Inverse Cosine Problem

Evaluate $\lim_{x \to 0} \frac{2 - \cos(3x) - \cos(4x)}{x}$

How do you solve $1+sin(2\theta)=0.0368$

Solve $\cos x+8\sin x-7=0$

Calculating coordinates of corners of polygon

Khan's proof of the derivative of the inverse cosine function

Using Trigonometry vs. Geometry

Solve $ \sin \pi x = (x+1)^2$

An isosceles triangle has sides of 17 centimeter and 20 centimeter and 20 centimeter. Find the magnitude of the angles trigonometry

Fairly simple trig question

Rotate $z = 0$ plane in 3D

Prove this identity: $\frac{2\sin^4x+\cos^2x-2\cos^4x}{3\sin^2x-1} =1$

Integral of $16/(1-\cos8x)$

Inequality problem about sides of a triangle and the semiperimeter

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