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midory Publish time 20-3-2012 10:32 PM

Reply 5# mnm77


   tq n tahniah sebab jawab... :loveliness:

lavender_aqua Publish time 21-3-2012 11:58 PM

1. let u=ln(ln x)
y=ln u

dy/du=1/u

since
u=ln(ln x)
let v=ln x --> dv/dx=1/x
so that u=ln v
du/dv=1/v

from chain rule:
du/dx= (du/dv) x (dv/dx)
      = (1/v) (1/x)
      = 1/ x ln x

chain rule:
dy/dx=(dy/du)(du/dx)
      = (1/u)(1/x ln x)
      = 1/ ux ln x)
      = 1/ ln(ln x)(x ln x)

lavender_aqua Publish time 22-3-2012 12:11 AM

Post Last Edit by lavender_aqua at 22-3-2012 00:12

2. http://i1163.photobucket.com/albums/q544/mid15/2-1.png (1)
x^2(x^2-4) + x + 1 = x^2 +   x+1
          x^2-4                     (x-2)(x+2)

using partial fraction:
x+1          =A      + B    (2)
(x-2)(x+2)    (x-2)      (x+2)

x+1=A(x+2) + B(x-2)

when x=-2
-1=-4B
B = 1/4

when x=2
3=4A
A=3/4

substitute back in (2)
x+1         =3       +    1   
(x-2)(x+2)    4(x-2)      4(x+2)


integration of (1)= x^3 + 3 ln (x-2) + ln (x+2) + C
                              3         4                4




* nak juga jwb walaupun dah lambat... {:downo

midory Publish time 22-3-2012 12:31 AM

2.(1)
x^2(x^2-4) + x + 1 = x^2 +   x+1
          x^2-4                     (x-2)(x+2)

u ...
lavender_aqua Post at 22-3-2012 00:11 http://english1.cari.com.my/images/common/back.gif


   terime kasih n tahniah sebab jawab jugak..:loveliness:

aritu tak perasan ke ade kuiz aqua.. :'(

lavender_aqua Publish time 22-3-2012 12:49 AM

terime kasih n tahniah sebab jawab jugak..

aritu tak perasan ke ade kuiz aqu ...
midory Post at 22-3-2012 00:31 http://mforum2.cari.com.my/images/common/back.gif


sama2...
salah masuk thread kuiz... {:limpo

midory Publish time 22-3-2012 12:54 AM

sama2...
salah masuk thread kuiz...
lavender_aqua Post at 22-3-2012 00:49 http://english1.cari.com.my/images/common/back.gif


   thread yg dh merge tu eh... :lol:

lavender_aqua Publish time 22-3-2012 12:56 AM

thread yg dh merge tu eh...
midory Post at 22-3-2012 00:54 http://mforum2.cari.com.my/images/common/back.gif


   aah.. {:decideo
sbb nak tau jwpn last week...

midory Publish time 22-3-2012 01:00 AM

aah..
sbb nak tau jwpn last week...
lavender_aqua Post at 22-3-2012 00:56 http://english1.cari.com.my/images/common/back.gif


   haha..
patot la senyap je..
tak jumpe kuiz rupenye.. :lol:

dauswq Publish time 23-3-2012 04:23 PM

~Tahap Soalan 8~

Sedang

dauswq Publish time 23-3-2012 04:25 PM

http://dl8.glitter-graphics.net/pub/1894/1894418ffamg7qufl.gifPENYELESAIANhttp://dl8.glitter-graphics.net/pub/1894/1894418ffamg7qufl.gif

1. http://i1163.photobucket.com/albums/q544/mid15/4-1.png

2. http://i1163.photobucket.com/albums/q544/mid15/5.png

dauswq Publish time 23-3-2012 04:31 PM

1. let u=ln(ln x)
y=ln u

dy/du=1/u

since
u=ln(ln x)
let v=ln x --> dv/dx=1/x
so that u=ln ...
lavender_aqua Post at 21-3-2012 23:58 http://mforum2.cari.com.my/images/common/back.gif

terima kasih kerana menjawab{:mlwa2:}

dauswq Publish time 23-3-2012 04:33 PM

Ehhh takde orang nak jawab ke? Saya ni kalau tengok soalan calculus, geram... rasa nak solve cepat2. ...
mnm77 Post at 20-3-2012 22:08 http://mforum2.cari.com.my/images/common/back.gif

terima kasih kerana menjawab{:1_508:}{:mlbigsmile:}

dauswq Publish time 26-3-2012 09:48 AM

★ FUN WITH MATH : Minggu Persamaan Pembezaan Algebra [Setiap Hari Isnin]★

Post Last Edit by dauswq at 26-3-2012 09:50

KLIK SINI UNTUK PERATURAN DAN SEBAGAINYA

dauswq Publish time 26-3-2012 09:48 AM

Post Last Edit by dauswq at 26-3-2012 09:53

http://dl.glitter-graphics.net/pub/2877/2877731g3dpzcja1a.gif

http://dl8.glitter-graphics.net/pub/1894/1894418ffamg7qufl.gifSOALAN 9http://dl8.glitter-graphics.net/pub/1894/1894418ffamg7qufl.gif
http://desmond.imageshack.us/Himg816/scaled.php?server=816&filename=matematik.jpg&res=medium
Sila hantar jawapan anda dengan membuat posting di sini sebelum pukul 12 malam lusa, Rabu 28/3/2012. SELAMAT MENCUBA!



Hint: Tanya fasilitator (dauswq, midory) dengan pm kami serentak...Satu hint akan mengurangkan markah sebanyak -5.

lavender_aqua Publish time 26-3-2012 10:43 AM

Post Last Edit by lavender_aqua at 26-3-2012 16:36

http://i119.photobucket.com/albums/o142/domain_adik/solution1.png

mnm77 Publish time 26-3-2012 11:49 AM

Salam...

Aiii... masih lagi calculus!!

http://i205.photobucket.com/albums/bb145/mnm77photo/Mathfun9.jpg

WAllahu a'lam

mnm77 Publish time 26-3-2012 11:52 AM

Initial conditions (IC) diberi tak?

Tak diberi kan?

....mana tau kot-kot la ada diberi tapi screen monitor saya tak nampak...?

midory Publish time 26-3-2012 03:08 PM

Initial conditions (IC) diberi tak?

Tak diberi kan?

....mana tau kot-kot la ada diberi tapi s ...
mnm77 Post at 26-3-2012 11:52 http://english1.cari.com.my/images/common/back.gif


   takde mnm... bg penyelesaian am je.. :D

lavender_aqua Publish time 26-3-2012 04:03 PM

takde mnm... bg penyelesaian am je..
midory Post at 26-3-2012 15:08 http://mforum2.cari.com.my/images/common/back.gif


   alamak, ter'advanced'...
biarlah... :lol:

midory Publish time 26-3-2012 04:24 PM

alamak, ter'advanced'...
biarlah...
lavender_aqua Post at 26-3-2012 16:03 http://english1.cari.com.my/images/common/back.gif


   haha.. tu la.. advance sngt..
up to you nk edit ke tak.. :P

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