List questions from algebra-precalculus

Published on 17 Apr 2026 - 15:52

130

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$2^{x-y} +2^{y-x} = 20$. What is the value of $ \frac{4^x + 4^y}{2^{x+y-3}}$?

Published on 16 Apr 2026 - 18:33

67

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Simplify expression and compute $\sum p_k.$

Published on 12 Apr 2026 - 21:54

223

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Complex Number Inequality $|2+z|\leq 2$

Published on 14 Apr 2026 - 22:45

431

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Range of a function, with contradictory restriction

Published on 23 Apr 2026 - 15:03

685

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British Maths Olympiad (BMO) 2006 Round 1 Question 5, alternate solution possible?

Published on 16 Apr 2026 - 19:45

66

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Finding invert for complicated function

Published on 10 Apr 2026 - 21:47

67

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Find the value of $x$.

Published on 13 Apr 2026 - 21:34

81

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Compound Interest Rates

Published on 08 Apr 2026 - 16:11

8.3k

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How to simplify $\log_7\log_7\sqrt{7\sqrt{7\sqrt{7}}}$

Published on 14 Apr 2026 - 19:06

72

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Justify a eigenstate of the hamiltionian

Published on 16 Apr 2026 - 13:26

136

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Function that sends $\sum_{i=0}^n x^i$ to $\sum_{i=0}^n x^{-i}$?

Published on 15 Apr 2026 - 9:30

197

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Mathematical approach in the calculation of work

Published on 13 Apr 2026 - 18:39

1.8k

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British Maths Olympiad (BMO) 2005 Round 1 Question 1 how to make progress?

Published on 16 Apr 2026 - 18:39

99

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Compute $\cos\frac{\pi}{7}-\cos\frac{2\pi}{7}+\cos\frac{3\pi}{7}$

Published on 14 Apr 2026 - 19:28

List Question

Number of integers satisfying $\left[\frac{x}{100}\left[\frac{x}{100}\right]\right]=5$

$2^{x-y} +2^{y-x} = 20$. What is the value of $ \frac{4^x + 4^y}{2^{x+y-3}}$?

Simplify expression and compute $\sum p_k.$

Complex Number Inequality $|2+z|\leq 2$

Range of a function, with contradictory restriction

British Maths Olympiad (BMO) 2006 Round 1 Question 5, alternate solution possible?

Finding invert for complicated function

Find the value of $x$.

Compound Interest Rates

How to simplify $\log_7\log_7\sqrt{7\sqrt{7\sqrt{7}}}$

Justify a eigenstate of the hamiltionian

Function that sends $\sum_{i=0}^n x^i$ to $\sum_{i=0}^n x^{-i}$?

Mathematical approach in the calculation of work

British Maths Olympiad (BMO) 2005 Round 1 Question 1 how to make progress?

Compute $\cos\frac{\pi}{7}-\cos\frac{2\pi}{7}+\cos\frac{3\pi}{7}$

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