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Here's a mental maths trick I really like. Want to calculate 75 without pen and paper? Take the first digit (7), multiply it by the next number...
Hi! So, all my life I've been using this theorem I developed and I thought was common knowledge, but apparently it isn't. So, I came here...
Helloooo, Im a high school student that is currently learning about logarithims,exponential functions and graphing, and in the course my professor started off by saying...
With my current understanding, the foundations of mathematics (the ZFC axioms, for example) are usually built upon a logical system (oftentimes first-order logic). But usually...