anonymous
  • anonymous
PLEASE HELP. :(
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1358980721038:dw|
RadEn
  • RadEn
int by sub let u=x+1 ---> du = ...
anonymous
  • anonymous
then du = 1..? i'll try doing it myself, and come back again if i cant get any farther.

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RadEn
  • RadEn
it should du=dx so, it can be int [0,3] (u^1/2) du = ...
anonymous
  • anonymous
|dw:1358981552574:dw| ?
anonymous
  • anonymous
oh wait, nevermindd i did something wrong there.
anonymous
  • anonymous
i got 13/3, but it says that the answer is -1/4...
anonymous
  • anonymous
oh WAIT. no sorry it says the answer is 14/3.
RadEn
  • RadEn
do u know, what's the integrate of u^1/2 du ?
anonymous
  • anonymous
yes. it is \[\frac{ 2u ^{3/2} }{ 3 }\]
RadEn
  • RadEn
yes, correct.. and after that u have to subtitute back u=(x+1). right ?
anonymous
  • anonymous
|dw:1358982043647:dw|
RadEn
  • RadEn
|dw:1358982171324:dw|
anonymous
  • anonymous
ahh I made a silly mistake. thank you !!! :D
RadEn
  • RadEn
very welcome ")

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