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 36 In plain language, what's the significance of a field? 28 How can you derive $\sin(x) = \sin(x+2\pi)$ from the Taylor series for $\sin(x)$? 24 Process to show that $\sqrt 2+\sqrt[3] 3$ is irrational 22 Which polynomials fix the unit circle? 20 Value of $f'(0)$ if $f(x)=\frac{x}{1+\frac{x}{1+\frac{x}{1+\ddots}}}$

### Reputation (8,610)

 +15 How to do this triangle question? +20 Derive probability mass function from probability-generating function +10 What is the probability that 5 randomly chosen cards in a deck add up to 40 or greater? +10 Proving $(0,1)$ and $[0,1]$ have the same cardinality

### Questions (3)

 21 Scalar product and uniform convergence of polynomials 16 Flaw or not flaw in Excel's RNG? 5 Irreducibility of an infinite sequence of polynomials

### Tags (163)

 111 calculus × 39 59 trigonometry × 27 96 algebra-precalculus × 25 56 integration × 19 74 sequences-and-series × 26 50 real-analysis × 17 61 linear-algebra × 17 46 polynomials × 12 61 derivatives × 13 40 discrete-mathematics × 11

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 Mathematics 8,610 rep 51549 Stack Overflow 1,754 rep 11023 Cross Validated 201 rep 37