2a......... (1 Viewer)

[spadey]

whats the deritives of 2lnx i have this sickening feeling that i did it wrong.

I moved the 2 so it was lnx^2

then dy/dx = 2x on x^2

 

[Winston]

derivative of lnx = 1/x

therefore 2lnx = 2/x

 

[Winston]

Originally posted by spadey
whats the deritives of 2lnx i have this sickening feeling that i did it wrong.

I moved the 2 so it was lnx^2

then dy/dx = 2x on x^2

your way can work too

2x/x^2 cancels to 2/x anyways

 

[spadey]

yay god it does 2 my brain is fried
i hope i cancelled down the final eqn!
thanx heaps

 

[tooheyz]

LOL u shouldnt think about the exams and what u did man - coz the more u think about it, the more u'll think u stuffed up and that will haunt u for the other exams..

dont feel beaten yet mate, coz u arent!

 

[freaking_out]

Originally posted by ToOhEyZ
...dont feel beaten yet mate, coz u arent!

yeah, thanx for tryin' to cheer us up.