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- 114 There are 4 cups of liquid. Three are water and one is poison. If you were to drink 3 of the 4 cups, what is the probability of being poisoned?
- 57 Easy way to compute logarithms without a calculator?
- 46 Why rationalize the denominator?
- 46 Count number of increasing functions, nondecreasing functions $f: \{1, 2, 3, \ldots, n\} \to \{1, 2, 3, \ldots, m\}$, with $m \geq n$.
- 29 Explanation circular permutation
- 23 Probability of $2$ people being together out of a group of $4$.
- 18 Prove that the power set of an $n$-element set contains $2^n$ elements
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