Heike
Reputation
1,036
Next privilege 2,000 Rep.
5 7
Impact
~15k people reached

• 0 posts edited

 24 How can I prove the inequality $\frac{1}{x} + \frac{1}{y} + \frac{1}{z} \geq \frac{9}{x+y+z}$? 11 Vector physics boat problem 5 Solving $y' = y-x-1+\frac{1}{x-y+2}, y(0)=0$ 5 Complex cosine and sine 4 Closed form formula for series involving derivatives of reciprocal gamma function

### Reputation (1,036)

 +50 How can I prove the inequality $\frac{1}{x} + \frac{1}{y} + \frac{1}{z} \geq \frac{9}{x+y+z}$? +10 A problem with an inscribed oval +25 Four kissing circles +10 Solving $y' = y-x-1+\frac{1}{x-y+2}, y(0)=0$

### Questions (0)

This user has not asked any questions

### Tags (20)

 24 algebra-precalculus 9 geometry × 3 24 inequality 8 complex-analysis × 3 11 multivariable-calculus 5 special-functions × 2 11 physics 5 differential-equations 10 sequences-and-series × 4 4 convergence × 2

### Accounts (7)

 Mathematica 27,642 rep 267119 Stack Overflow 16,777 rep 21728 Mathematics 1,036 rep 57 Area 51 201 rep 2 Super User 101 rep