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Curated Video
Proving pi is irrational (using high school level calculus)
I did make one big typo/mistake in the video: at 3:40 I claimed that f(x) is a polynomial with integer coefficients. I meant to write n!f(x) is a polynomial with integer coefficients. Commenter ffggddss also pointed out some other...
Curated OER
How Do You Solve an Inequality?
Help your class understand how to solve algebra problems involving inequalities. The instructor goes through a series of algebra problems involving inequalities and positive and negative integers. A good review.