Heike

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1,016 reputation

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visits	member for	1 year, 11 months
	seen	Dec 14 '12 at 11:44
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16 Answers

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23	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

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1,016 Reputation

+60	How can I prove the inequality $\frac{1}{x} + \frac{1}{y} + \frac{1}{z} \geq \frac{9}{x+y+z}$?
+25	Four kissing circles
+10	Solving $y' = y-x-1+\frac{1}{x-y+2}, y(0)=0$
+10	Closed form formula for series involving derivatives of reciprocal gamma function

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21 Tags

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

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$Mathematics Stack Exchange$	Mathematics	1,016 rep	37
	Area 51	201 rep	2
	Super User	101 rep

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