foaly
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### Questions (25)

 4 how do you learn trigonometric identities [duplicate] 3 Is this proof legit? 2 Minimal polynomial reducible modulo every prime $p$ 2 how to evaluate this limit 2 Two questions about subspaces

### Reputation (194)

 +5 Evaluating $\sum_{k=0}^n \frac{1}{(2k+1)!(2(n-k))!}$ +5 How to obtain this geometric progression +10 Minimal polynomial reducible modulo every prime $p$ +10 Prove that $n$ devides $\phi(p^n-1)$

 2 Minimal polynomial reducible modulo every prime $p$ 0 polynomial solution of second order differential equation 0 Prove that $n$ devides $\phi(p^n-1)$ 0 Do I understand this question correctly? 0 tangent line to $y=(1+x^{2/3})^{3/2}$ at $x = -1$

### Tags (23)

 2 abstract-algebra × 4 0 calculus × 6 2 galois-theory × 4 0 vector-spaces × 6 2 minimal-polynomials × 2 0 analysis × 3 2 finite-fields × 2 0 derivatives × 3 0 linear-algebra × 9 0 differential-equations × 2

### Accounts (12)

 Mathematics 194 rep 11 Stack Overflow 92 rep 117 Super User 16 rep 3 Cryptography 8 rep 3 WordPress Development 3 rep 1