35 What equation produces this curve? 20 Question about Gödel's Incompleteness Theorem 3 How do I transpose an ellipse function to stretch the ellipse into curved space? 3 How can one distribute six dots within a semicircle in order to minimise the distance between any single point and one of the six dots? 3 Why should $b$ groups of $a$ apples be the same as $a$ groups of $b$ apples?

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 +2 Why is the determinant of the 0x0 matrix equal 1? +10 Why does a distance and its square reach their minimum at the same point? +2 A possible solution to $\sqrt {5-x}=5-x^2$ (without taking square from both sides) +10 How to prove that linear transformations transforms lines into lines

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 41 graphing-functions × 4 20 logic 36 vectors × 4 20 incompleteness 36 bezier-curve × 2 5 conic-sections × 2 36 cubic-equations × 2 5 trigonometry × 2 36 spline × 2 4 linear-algebra × 4

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 6 Cool riddle involving integer vectors