Monthly Archives: November 2021

2017 AMC 8 Problem 19

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Bogus proof: All horses are red

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Warshall’s algorithm for transitive closure

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System of differential equations for arbitrary eigen values

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Derivation: Reflection matrix along line y=mx

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Derivation: Rotation matrix in counterclockwise direction

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Simple predator prey model

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A quick question on factorial

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Idea behind divisibility test of 11

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Sum of Divisors: 2021 AMC 10 B Problem 12

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