Garmen1778

632 reputation

116

bio	website	skarola.org
	location	Donostia
	age	18
visits	member for	1 year, 2 months
	seen	May 11 at 16:17
stats	profile views	161

I'm a 17 years old guy, who is in love with mathematics, physics and astronomy.

	632 reputation	bio	website	skarola.org	visits	member for	1 year, 2 months
116 badges		location	Donostia		seen	May 11 at 16:17

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33 Questions

views newest activity votes

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How to isolate $Q$ in $g=Q(p-c\ln{Q})$?

algebra-precalculus

apr 28 at 12:23 Abel 4,188

votes

answer

views

Finding the most profitable option

economics

apr 25 at 0:00 Ross Millikan 83.6k

vote

answer

286

views

How can I put the “3 body problem” mathematically?

feb 26 at 4:58 Jamahl Peavey 39

votes

answers

views

Prove if a given number $x$ is decimal or natural

number-theory

jan 8 at 19:25 user1551 16.7k

votes

answers

372

views

Finding $\int x^xdx$

calculus integral

dec 7 at 4:57 mixedmath♦ 27.3k

vote

answers

972

views

What are the probabilities of getting a “Straight flush” in a poker game?

card-games

dec 4 at 16:33 broccoli 192

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answer

views

Is there a generalized formula to solve the $n$th exponent of an $m$ dimensional square matrix?

matrices

sep 19 at 20:13 Byron Schmuland 15.4k

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answers

views

Does a random action have probability?

probability random

jun 20 '12 at 0:56 Matthew Conroy 3,840

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answer

views

How to know if a point in a $n$ dimensional space is inside an area?

geometry

may 27 '12 at 11:00 sebigu 477

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answers

110

views

What equation intersects only once with $f(x)=\sqrt{1-(x-2)^2}$

algebra-precalculus analytic-geometry

may 22 '12 at 7:30 Willie Wong♦ 30.7k

votes

answers

509

views

What does $dx$ mean?

calculus notation

may 16 '12 at 5:37 Community♦ 1

votes

answers

139

views

Calculate $\lim\limits_{x\to -1}\frac{x^2+3x+2}{x^2+2x+1}$

limit

may 11 '12 at 5:31 Siddhant Trivedi 609

votes

answers

233

views

Proof that $\int_{-1}^{1}\sqrt{1-x^2}dx=\frac{\pi}{2}$?

calculus integral pi

may 10 '12 at 15:54 GEdgar 19k

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answers

863

views

Limits of $f(x)=x-x$

limit infinity

may 9 '12 at 21:43 Kaz 2,162

votes

answers

487

views

How to write an integral as a limit?

calculus integral

may 9 '12 at 21:40 Peter Tamaroff 25.8k

votes

answer

405

views

How to find $\int{\left(\frac{\sqrt{x+1}}{x-1}\right)^x}dx$?

calculus integral

may 9 '12 at 21:10 diofanto 124

votes

answers

141

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Derivative of $\ln\sqrt{\frac{e^{x^2}}{e^x+2}}$?

calculus derivatives

may 9 '12 at 18:21 Salech Alhasov 1,972

votes

answers

328

views

How to calculate $\int{\frac{dx}{3x^2+2}}$?

calculus integral

apr 28 '12 at 3:37 Arturo Magidin 158k

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answers

173

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Limit inside an integral

calculus integral limit

apr 27 '12 at 19:23 Garmen1778 632

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answers

436

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Get rid of the denominator of $\frac{x^4-x^2+1}{x+3}$

algebra-precalculus

apr 27 '12 at 18:13 Community♦ 1

votes

answers

136

views

How to find $\int{\frac{x}{\sqrt{x^2+1}}dx}$?

calculus integral

apr 25 '12 at 21:03 Joe 3,060

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answers

377

views

How to explain integrals and derivatives to a 10 years old kid?

calculus integral derivatives

apr 25 '12 at 7:27 Mark Bennet 9,878

vote

answers

239

views

Ways to solve these types of indeterminations?

calculus limit

apr 11 '12 at 9:52 Américo Tavares 20.7k

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325

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Proof that $\displaystyle\sum_{n=0}^{\infty}{\frac{x^{n}}{n!}}={\left(\sum_{n=0}^{\infty}{\frac{1}{n!}}\right)}^{x}$?

calculus algebra-precalculus

apr 8 '12 at 22:25 Peter Tamaroff 25.8k

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answers

views

Where is the highest point of $f(x)=\sqrt[x]{x}$ in the $x$-axis?

calculus

apr 4 '12 at 21:07 Arturo Magidin 158k

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answers

views

Limits of $f(x)=x!\frac{e^{x}+1}{x^{x}}$?

calculus limit

apr 2 '12 at 12:06 moreno94 19

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answers

249

views

How to get rid of the integral in this equation $\int\limits_{x_0}^{x}{\sqrt{1+\left(\dfrac{d}{dx}f(x)\right)^2}dx}$?

homework calculus definite-integral

mar 29 '12 at 13:22 robjohn♦ 59.7k

votes

answers

119

views

How to express $\frac{x^3+4x^2-1}{(x^2+1)^2}$ as a polynomial plus a proper fraction, using long division?

polynomials factoring

mar 27 '12 at 23:42 Garmen1778 632

votes

answer

169

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Limit of $\lim\limits _{ x\to \infty } \left( \sqrt { x^2+3x } -\sqrt { x^2+x } \right) $?

homework limit

mar 27 '12 at 19:30 Michael Hardy 48.2k

vote

answers

519

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Is there a formula that generates a completely random number? [closed]

random

mar 22 '12 at 22:40 user15553 1