List questions from trigonometry

Published on 29 Mar 2026 - 10:03

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A peculiar Diophantine equation

Published on 29 Mar 2026 - 15:21

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What is a symbolic expression to calculate height of a triangle from two angles and a side?

Published on 24 Mar 2026 - 23:57

91

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Compute $\int\frac{x^2}{\tan{x}-x}dx$ for $x \in (0, \frac{\pi}{2})$

Published on 24 Mar 2026 - 22:08

68

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Evaluate $\int_{0}^{a} \ cos^{a-1}x\ cos(a+1)x dx $

Published on 26 Jan 2018 - 21:28

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Find an appropriate trigonometric substitution of the form x=f(t) to simplify the integral

Published on 20 Mar 2026 - 20:42

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Find the largest angle for which sine and tangent agree to within two significant figures.

Published on 27 Jan 2018 - 0:18

89

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Finding number of real solution of $4^x-2^{2+x}\cos(e^x)+1=0$

Published on 24 Mar 2026 - 20:33

81

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What's the best method to integrate $\int\arctan{\frac{1}{1 - x}}dx$?

Published on 24 Mar 2026 - 23:46

43

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Prove that $\sum_{n\in\mathbb{N}}\sin^3{\frac{2}{n}}$ converges

Published on 25 Mar 2026 - 6:03

848

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Express $\cos(\tan^{-1}(x))$ in terms of $x$.

Published on 24 Mar 2026 - 19:08

115

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Derive the conditions for $\tan^{-1}x+\tan^{-1}y=\pi+\tan^{-1}\frac{x+y}{1-xy}$

Published on 24 Mar 2026 - 20:46

83

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How to find the tension of $T_1$ and $T_2$?

Published on 26 Mar 2026 - 12:08

1.3k

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Prove that: $\tan (2\tan^{-1} (x))=2\tan (\tan^{-1} (x)+\tan^{-1} (x^3))$

Published on 24 Mar 2026 - 20:42

158

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Rewrite binomial sum with trig functions

Published on 25 Mar 2026 - 1:14

List Question

Cubic Equation With Complex Roots

A peculiar Diophantine equation

What is a symbolic expression to calculate height of a triangle from two angles and a side?

Compute $\int\frac{x^2}{\tan{x}-x}dx$ for $x \in (0, \frac{\pi}{2})$

Evaluate $\int_{0}^{a} \ cos^{a-1}x\ cos(a+1)x dx $

Find an appropriate trigonometric substitution of the form x=f(t) to simplify the integral

Find the largest angle for which sine and tangent agree to within two significant figures.

Finding number of real solution of $4^x-2^{2+x}\cos(e^x)+1=0$

What's the best method to integrate $\int\arctan{\frac{1}{1 - x}}dx$?

Prove that $\sum_{n\in\mathbb{N}}\sin^3{\frac{2}{n}}$ converges

Express $\cos(\tan^{-1}(x))$ in terms of $x$.

Derive the conditions for $\tan^{-1}x+\tan^{-1}y=\pi+\tan^{-1}\frac{x+y}{1-xy}$

How to find the tension of $T_1$ and $T_2$?

Prove that: $\tan (2\tan^{-1} (x))=2\tan (\tan^{-1} (x)+\tan^{-1} (x^3))$

Rewrite binomial sum with trig functions

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