maths for engineers

[Koen Crawford]

Hello,

Please can someone help me solve my problem. I have recently submitted my answer and had my work referred for an error. I have pictures of my question and working out, however i can not seem to post them on the page. can i email them to someone for advice/guidance

Thanks

 

[Sunnysky]

upload your images such as ... http://obrazki.elektroda.pl/index.php. in jpg / bump format. this may compress files then paste url
upload files button with acceptable extension but not oversized .
I use IRFANView to resize images <1MB

 

[Koen Crawford]

Thank you for the reply. Are you able to help me with my errors ?

 

[Sunnysky]

n

 

[infectme247]

Hi. In the beginning of your answer for part B, at the 6th line you write that the integral of x*e^2x is equal to the difference e^2x/2 - e^2x/4.
At first, it seemed to me like you tried to solve the previous equation for the integral, but this result doesn't seem to follow in any way, and furthermore it's wrong as it would imply that the integral of xe^2x w.r.t. x, is e^2x/4, which is false!