List questions from trigonometry

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Check for equality of the integrals

Published on 15 Apr 2026 - 3:11

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Simplifying arctan expressions such as $\arctan 8 + \arctan 2 + \arctan\frac23$

Published on 17 Apr 2026 - 7:57

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Trigonometric functions in system of equations

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How do I solve $y=x+B\sin(x+A)$ for $x$

Published on 12 Apr 2026 - 14:50

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Prove that $\tan(x) \gt x$ for any $x$, $x\in(0,π/2)$

Published on 16 Apr 2026 - 12:17

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Solution of $\tan^{-1} \sqrt{x^2 + x} +\sin^{-1} \sqrt{x^2 + x + 1} = \pi/2$

Published on 16 Apr 2026 - 21:04

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$\sqrt {-i}$ by De Moivre's Theorem

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Trigonometry substitution issue with sign

Published on 11 Apr 2026 - 9:54

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Smallest square to cover a right triangle

Published on 14 Apr 2026 - 13:14

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What is wrong with this approach to easy trig question?

Published on 10 Apr 2026 - 10:40

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Trigonemetric Functions Exam Question

Published on 09 Apr 2026 - 15:34

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Eliminating $\theta$ from trigonometric system

Published on 11 Apr 2026 - 17:33

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Showing that $\frac{\cos(\theta)-1}{\sin(\theta)}=-\tan(\frac{\theta}{2})$

Published on 16 Apr 2026 - 22:56

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sine(x) vs. sine(constant)

Published on 14 Apr 2026 - 12:45

List Question

Prove that segment is a bisector using sine law

Check for equality of the integrals

Simplifying arctan expressions such as $\arctan 8 + \arctan 2 + \arctan\frac23$

Trigonometric functions in system of equations

How do I solve $y=x+B\sin(x+A)$ for $x$

Prove that $\tan(x) \gt x$ for any $x$, $x\in(0,π/2)$

Solution of $\tan^{-1} \sqrt{x^2 + x} +\sin^{-1} \sqrt{x^2 + x + 1} = \pi/2$

$\sqrt {-i}$ by De Moivre's Theorem

Trigonometry substitution issue with sign

Smallest square to cover a right triangle

What is wrong with this approach to easy trig question?

Trigonemetric Functions Exam Question

Eliminating $\theta$ from trigonometric system

Showing that $\frac{\cos(\theta)-1}{\sin(\theta)}=-\tan(\frac{\theta}{2})$

sine(x) vs. sine(constant)

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