Question

If $\tan(A-B)=1$ and $\sec(A+B)=2/\sqrt{3}$, find the minimum positive value of $B$

score 936 · Answer 1 · 2018-11-02 14:32:55

936

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If $\tan(A-B)=1$ and $\sec(A+B)=2/\sqrt{3}$, find the minimum positive value of $B$

Published on 02 Nov 2018 - 14:32

score 1k · Answer 2 · 2026-04-08 22:24:27

1k

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A random trigonometry problem

Published on 08 Apr 2026 - 22:24

score 5.7k · Answer 3 · 2018-11-02 19:32:35

5.7k

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Finding Angle and Length of Brace Given Unknown Dimension.

Published on 02 Nov 2018 - 19:32

score 1.8k · Answer 4 · 2026-04-10 16:51:07

1.8k

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Vertical pipe through a 45° roof: How to determine the roof hole's shape?

Published on 10 Apr 2026 - 16:51

score 24 · Answer 5 · 2018-11-02 20:44:23

24

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Find the interval to which a variable in a trigonometric function belongs.

Published on 02 Nov 2018 - 20:44

score 209 · Answer 6 · 2026-03-28 19:36:03

209

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Prove determinant of a matrix with trigonometry functions.

Published on 28 Mar 2026 - 19:36

score 219 · Answer 7 · 2018-11-03 16:31:16

219

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Evaluating $\lim_{x \to \infty}\frac{1}{x}\int_0^x|\sin(t)|dt$

Published on 03 Nov 2018 - 16:31

score 2.8k · Answer 8 · 2026-03-26 04:30:18

2.8k

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How is $\cos^2t + \sin^2t = 1$?

Published on 26 Mar 2026 - 4:30

score 57 · Answer 9 · 2026-04-10 04:55:07

57

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How do I calculate the value of $\tan(1/2)$ for the De Moivre formula

Published on 10 Apr 2026 - 4:55

score 1.1k · Answer 10 · 2026-04-11 23:05:37

1.1k

Views

What is the maximal value of $\theta$ for which $\sin\theta\approx \theta$ holds to within $10\%$ error?

Published on 11 Apr 2026 - 23:05

score 175 · Answer 11 · 2018-11-03 23:59:20

175

Views

Trigonometric functions, find the value of x that maximizes the area of quadrilateral.

Published on 03 Nov 2018 - 23:59

score 483 · Answer 12 · 2018-11-04 01:50:59

483

Views

If $0<x<90^\circ$ and $\sin x=24/25$ find $\frac{\cos(x/2)}{\cos(x/2)+\sin(x/2)}$

Published on 04 Nov 2018 - 1:50

score 82 · Answer 13 · 2026-04-12 13:34:53

82

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Can $\tan(x)$ be expressed as a sum of $\cos$ and $\sin$?

Published on 12 Apr 2026 - 13:34

score 47 · Answer 14 · 2018-11-04 05:20:14

47

Views

Proving that $\prod_{k=1}^n\left(1+\cot\frac{\pi(4k-1)}{4n}\right)$ is an integer

Published on 04 Nov 2018 - 5:20

score 3.6k · Answer 15 · 2026-04-03 02:37:49

3.6k

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Real and imaginary part of $\tan(a+bi)$

Published on 03 Apr 2026 - 2:37

List Question

If $\tan(A-B)=1$ and $\sec(A+B)=2/\sqrt{3}$, find the minimum positive value of $B$

A random trigonometry problem

Finding Angle and Length of Brace Given Unknown Dimension.

Vertical pipe through a 45° roof: How to determine the roof hole's shape?

Find the interval to which a variable in a trigonometric function belongs.

Prove determinant of a matrix with trigonometry functions.

Evaluating $\lim_{x \to \infty}\frac{1}{x}\int_0^x|\sin(t)|dt$

How is $\cos^2t + \sin^2t = 1$?

How do I calculate the value of $\tan(1/2)$ for the De Moivre formula

What is the maximal value of $\theta$ for which $\sin\theta\approx \theta$ holds to within $10\%$ error?

Trigonometric functions, find the value of x that maximizes the area of quadrilateral.

If $0<x<90^\circ$ and $\sin x=24/25$ find $\frac{\cos(x/2)}{\cos(x/2)+\sin(x/2)}$

Can $\tan(x)$ be expressed as a sum of $\cos$ and $\sin$?

Proving that $\prod_{k=1}^n\left(1+\cot\frac{\pi(4k-1)}{4n}\right)$ is an integer

Real and imaginary part of $\tan(a+bi)$

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