List questions from algebra-precalculus

Published on 14 Apr 2026 - 13:57

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$-1 = 4\cos(t^2) - \sin(t^2)\cos(t^2)$

Published on 17 Apr 2026 - 12:57

72

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Verifying How Tall a Stack of Pennies Is

Published on 11 Apr 2026 - 12:23

155

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Getting Trig Answers

Published on 09 Apr 2026 - 19:22

48

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To prove or give counterexample that $R \subset Dom(R) \times Ran(R)$

Published on 17 Apr 2026 - 12:37

85

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What is $0.5!×(-0.5)!$?

Published on 16 Apr 2026 - 19:23

336

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Unnesting $\sqrt{1+\sqrt2}$

Published on 15 Apr 2026 - 11:52

4.2k

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Solving a system of equations: $\begin{cases}\frac xy-\frac yx=\frac{15}4\\2x-5y=9\end{cases}$

Published on 16 Apr 2026 - 22:59

6.9k

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How to factor $a^{3} + b^{3} + c^{3} - 3abc$ into a product of polynomials

Published on 14 Apr 2026 - 22:16

445

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Find the circumcentre of a triangle with points $z_1,z_2$ and the origin as its vertices where $z_1,z_2 \in \mathbb{C}$

Published on 16 Apr 2026 - 13:08

401

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How to expand a double sum of products express?

Published on 09 Apr 2026 - 10:15

199

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Integral values of $k$ for which polynomial has integral roots.

Published on 11 Apr 2026 - 6:19

301

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Sequence to study Mathematics from beginning to Undergraduate Level

Published on 11 Apr 2026 - 14:45

52

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How to get the value of $a^{-3} - b^{-3}$

Published on 11 Apr 2026 - 23:51

893

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Finding the Equation of the Ellipse By Completing the Square

Published on 15 Apr 2026 - 13:43

List Question

When am I allowed to remove a term by dividing 0 by the term

$-1 = 4\cos(t^2) - \sin(t^2)\cos(t^2)$

Verifying How Tall a Stack of Pennies Is

Getting Trig Answers

To prove or give counterexample that $R \subset Dom(R) \times Ran(R)$

What is $0.5!×(-0.5)!$?

Unnesting $\sqrt{1+\sqrt2}$

Solving a system of equations: $\begin{cases}\frac xy-\frac yx=\frac{15}4\\2x-5y=9\end{cases}$

How to factor $a^{3} + b^{3} + c^{3} - 3abc$ into a product of polynomials

Find the circumcentre of a triangle with points $z_1,z_2$ and the origin as its vertices where $z_1,z_2 \in \mathbb{C}$

How to expand a double sum of products express?

Integral values of $k$ for which polynomial has integral roots.

Sequence to study Mathematics from beginning to Undergraduate Level

How to get the value of $a^{-3} - b^{-3}$

Finding the Equation of the Ellipse By Completing the Square

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