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www.mathsisfun.com | ||
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www.johnmyleswhite.com
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| | | | | Recently a friend asked me to help her learn enough math to take the GRE's. My response was to give her the first problem that I thought she should be able to solve before we discussed anything else. It was a very simple problem from the perspective of a mathematician, but one that is not simple enough to solve only using the approaches to problem-solving that are usually taught in American high schools. | |
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kaue.me
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| | | | | Mathematics - Algebra - Quadratic Equation Formula Derivation - Step By Step Kaue's Way of Life. | |
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parametricity.com
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| | | | | There's a famous dubious argument that "proves" the set of $\mathrm{Tree}$ of (planar, rooted) binary trees is in bijection with the set of $7$-tuples of trees $\mathrm{Tree}^6$. | |
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www.publichealth.columbia.edu
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| | | Learn more about the exciting programs in the different departments of public health at the School. | ||