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Forum Maschinenbau Rostock • Thema anzeigen - 17.2 b.)

17.2 b.)

17.2 b.)

Beitragvon Schnorrie » Do 28. Apr 2011, 16:46

a.)

z=7x+2

Int( z^(1/4) * 1/7 dz)

Int(z^1/4)= 4/5*z^(5/4)

> 1/7 * 4/5 * z^(5/4) +c= 5/28 * z^(5/4)+c

dann rücksubstitution

...
Zuletzt geändert von Schnorrie am Do 28. Apr 2011, 16:52, insgesamt 1-mal geändert.
Warum Effektgeräte kaufen, wenn man die teuer selber bauen kann :)
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Re: 17.2

Beitragvon Schnorrie » Do 28. Apr 2011, 16:49

b.)

z=5x+2

= Int(1/(cos(z) * 1/5 dz)

= tan(z) *1/5 +c

rücksubstitution

=tan(5x+2)*1/5 +c
Warum Effektgeräte kaufen, wenn man die teuer selber bauen kann :)
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Re: 17.2 b.)

Beitragvon Schnorrie » Do 28. Apr 2011, 17:00

c.) dat teil hat ja die Form Int(f'(x)/f(x)dx)

nach einer integrationsregel folgt dann

ln|f(x)|+c



... ka wie man das anders machen soll^^

Falls es einen interessiert da hab dich die regel her

http://www.krauseplonka.de/math_onl/ma1 ... regeln.htm
Warum Effektgeräte kaufen, wenn man die teuer selber bauen kann :)
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Re: 17.2 b.)

Beitragvon Der Dachs » Do 28. Apr 2011, 17:41

schnorrie...bei b)a) is dir ein fehler unterlaufen....1/7*4/5=4/35....
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Re: 17.2 b.)

Beitragvon Schnorrie » Do 28. Apr 2011, 19:28

xDD ouhh man danke :)
Warum Effektgeräte kaufen, wenn man die teuer selber bauen kann :)
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Re: 17.2 b.)

Beitragvon caydaAtes » Mo 5. Jan 2015, 11:29

das gleichungssystem soll gelöst werden...dieses haben wir zuvor mir hilfe der determinante berechnet, dieses würde aber bei dieser matrix zu keinem ergebniss führen, da die determinante 0 ist (divison durch 0 geht nicht!). also besitzt das gleichungssystem eine homogene und inhomogene lösungsstruktur, welche es zu bestimmen gilt.... demnach ist es nicht notwendig den rang zu ermitteln



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