admin

16 Questions
1410 Answers

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Neue Datenschutzrichtlinie, Mai 2018

Hallo,

Diese Webseite wurde aktualisiert mit kleineren Anpassungen an die DS-GVO.
read more ..

off-topic

admin May 27, 2018

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New Privacy Policy, May 2018

Hello,

this website was updated today because of some legal changes here in Europe. ("GDPR").
read more ..

off-topic

admin May 27, 2018

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New version is online for two weeks now, any problems?

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com
read more ..

admin Sep 12, 2015

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New website is online.

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com , thank you!
read more ..

Melody ●●●●●●●●●●●●●●●●

admin Aug 30, 2015

+7

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Neue Version der Webseite ist online

Hi,

Probleme bitte per Email an britnex+bugs@gmail.com melden, Danke!
read more ..

admin Aug 30, 2015

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+3147

three times ten to the power of negative 2

help what is 3x10to the power of negative 2

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admin Jan 26, 2012

+3147

0

1.5 equals 1 + 0.5 = 1+ 1/2 = 2/2 + 1/2 = 3/2

40 / ( 3/2 ) = 40 * 2/3 = 80/3

[input]40/1.5[/input]

adminAug 22, 2013

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[input]expand( (3x^3)^4 )[/input]

adminAug 22, 2013

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[input]solve(v^2 = u^2 + 2*a*s, s)[/input]
[input]solve(v^2 = u^2 + 2*a*s, u)[/input]
[input]solve(v^2 = u^2 + 2*a*s, v)[/input]

adminAug 21, 2013

+3147

0

x*y=5*10^6
x/y=4/3

[input]solve( x*y=5*10^6, x/y=4/3)[/input]
{x=-2581.9888974716112568, y=-1936.4916731037084426, x=2581.9888974716112568, y=1936.4916731037084426}

oder per hand ausgerechnet:
x/y=4/3 umformen nach x=(4/3)*y, danach einsetzen in x*y=5*10^6

((4/3)*y)*y=5*10^6
y^2*4/3 = 5000000 |*3
y^2*4 = 5000000*3 |/4
y^2 = 5000000*3/4 |/4
y^2 = 3750000 | wurzel()
y=+1936.4916731037084426 (negatives ergebnis von y macht hier keinen sinn)

x*y=5*10^6 umformen nach x = 5000000/y ist 5000000/1936.4916731037084426 = +2581.9888974716112567724

also breite=2581 und höhe = 1936 (gerundet)

adminAug 21, 2013

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[input]plot(2x^2+5x+1, x=-4..4, -4..10)[/input]

adminAug 20, 2013

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[input]3.92[/input]

adminAug 20, 2013

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[input]expand((2x+3)^3)[/input]

adminAug 18, 2013

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n = (T1-T2)/T1 = 1-T2/T1

T2 = 224 deg

n = 1-T2/T1
n-1 = -T2/T1
T1 * (n-1) = -T2
T1 = -T2/(n-1)

[input]-224 / (0.7946-1)[/input]
1090.55 degree Celsius.

adminAug 17, 2013

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4.5=4+1/2= 2*4/2+1/2=8/2+1/2=9/2

reciprocal of 9/2 is 2/9

[input]1/4.5[/input]

adminAug 17, 2013

+3147

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[input]27 - (407 - 676 x (399 - 771))[/input]

adminAug 17, 2013