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Challenge 120

Fire in the Rope Difficulty Level: We have two ropes that do not necessarily have the same length. If we set fire to the end of either string, it will take exactly 1 hour for the fire to reach the other end of the string. However, the fire will not move at constant speed, it may be faster at some points and slower at others.
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Challenge Response 181

Adding six Considering the numbers 1 used in the sum: 6 times the 1: 1 + 1 + 1 + 1 + 1 + 1 5 times the 1: There are 4 times the 1: 1 + 1 + 1 + 1 + 2 3 times the 1: 1 + 1 + 1 + 3 2 times the 1: 1 + 1 + 2 + 2 and 1 + 1 + 4 1 times the 1: 1 + 2 + 3 and 1 + 5 0 times the 1: 2 + 2 + 2, 2 + 4 and 3 + 3 So there are 10 solutions. Back to statement Challenge 180 The beggar and the cigarettes Challenge index Next >> Challenge 182 Move a Toothpick
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Who invented trigonometry?

Trigonometry is not the work of one man or nation. Its history is thousands of years old and is part of every great civilization. From Hipparchus to modern times there was no trigonometric "reason." Instead, the Greeks and later the Hindus and Muslims used trigonometric lines.
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What is the Fields Medal?

It is a medal awarded to people who have made relevant contributions to the mathematical sciences. Also known as the "International Medal of Outstanding Mathematical Discoveries," the Fields Medal is awarded every four years at the International Congress of the International Union of Mathematics (IMU) to two, three, or four mathematicians, typically up to 40 years old. .
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Mathematical Dictionary - Letter C (continued)

COMBINATION - A branch of mathematics that analyzes different ways of grouping the elements of a set and calculating the number of these groupings. COMPASS - Drawing instrument used to draw circumferences. COMPENSATION - A way of making an estimate where you can adjust an underestimated (below value) or overestimated (above value) result to get an approximate result closer to reality.
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Polynomial division

Let's think of a division of natural numbers. Dividing 7 by 5 means getting quotient 1 and remainder 2. Now let's think about dividing the polynomial A (x) by the nonzero polynomial B (x), which generates the quotient Q (x) and the remainder R (x). In this division: A (x) is the dividend; B (x) is the divisor; Q (x) is the quotient; R (x) is the rest of the division.
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