List questions from trigonometry

Published on 13 Apr 2026 - 7:00

74

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Expansion of $\sin(a_{1}+a_{2}+....+a_{n})$?

Published on 14 Apr 2026 - 22:23

2.4k

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Area of a Parallelogram

Published on 15 Apr 2026 - 14:42

753

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Finding $\tan B$ and $\tan(A+B)$

Published on 12 Apr 2026 - 15:13

2.3k

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Is $\sqrt{1-\sin ^2 100^\circ}\cdot \sec 100^\circ = 1$ or $-1$?

Published on 16 Apr 2026 - 16:55

87

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Proving a trigonometric relation

Published on 14 Apr 2026 - 3:59

141

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Explain how the following is equal to $2\cos x$.

Published on 17 Apr 2026 - 5:30

95

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Are there any constants other than $\pi$ that give rational or known irrational values for $\cos(\theta)$?

Published on 16 Apr 2026 - 12:08

59

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Polar graph question

Published on 16 Apr 2026 - 14:16

147

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Why is $\displaystyle\int^{\infty}_{0}{(1-\cos x)\over{x^{2}}}dx = \frac\pi{2}$?

Published on 18 Apr 2026 - 23:24

56

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Question that includes Trigonometry

Published on 12 Apr 2026 - 8:47

66

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Compare the following numbers...

Published on 13 Apr 2026 - 9:57

76

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Find the value of $(a+b+c)$ when $\cos\theta+\cos^2\theta+\cos^3\theta=1$ and $\sin^6\theta=a+b\sin^2\theta+c\sin^4\theta$

Published on 16 Apr 2026 - 5:40

39

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Using Right triangles to determine Values

Published on 11 Apr 2026 - 20:03

54

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Find tangent from other two trig ratios

Published on 14 Apr 2026 - 0:28

List Question

How to approach sketching sine and cosine graphs with transformations

Expansion of $\sin(a_{1}+a_{2}+....+a_{n})$?

Area of a Parallelogram

Finding $\tan B$ and $\tan(A+B)$

Is $\sqrt{1-\sin ^2 100^\circ}\cdot \sec 100^\circ = 1$ or $-1$?

Proving a trigonometric relation

Explain how the following is equal to $2\cos x$.

Are there any constants other than $\pi$ that give rational or known irrational values for $\cos(\theta)$?

Polar graph question

Why is $\displaystyle\int^{\infty}_{0}{(1-\cos x)\over{x^{2}}}dx = \frac\pi{2}$?

Question that includes Trigonometry

Compare the following numbers...

Find the value of $(a+b+c)$ when $\cos\theta+\cos^2\theta+\cos^3\theta=1$ and $\sin^6\theta=a+b\sin^2\theta+c\sin^4\theta$

Using Right triangles to determine Values

Find tangent from other two trig ratios

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