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An algebra problem from Harvard-MIT mathematics tournament.
Simplifying the difference of two square roots
Another not so difficult problem in Putnam (and it is not the first question in the session!)
Another not so difficult Putnam problem
Solving system of linear equations | A re-introduction of the method of elimination
A relatively easy problem from the
Squaring a number ending in 5 | Answer to mental math challenge and the mathematical explanation
#SAT
SAT math problem without calculator | fraction manipulation without long division
A Harvard-MIT mathematics tournament question | algebra, geometry, polar coordinates, derivatives
Another SAT complex number problem
Rice Mathematics competition - infinite sum of telescopic series with partial fraction decomposition
Solving a
Quickly eliminating wrong answers | Solving a
Solving three SAT math problem within 90 seconds
