how to lose this one
2006-09-13 04:56:56 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
How can be integrated by parts??
2006-09-13 05:22:12 · update #1
I have not a clue. I work at a college and am getting in touch with a math professor will post back in a while
2006-09-13 05:10:42 · answer #1 · answered by scokeman 4 · 0⤊ 0⤋
assuming this is dy/dx + (ln x)/[3x (2 - ln x)] = 0
then, dy/dx = -(ln x) / [6x - 3x.ln x]
now seperate the variables and integrate.
2006-09-13 05:09:10 · answer #2 · answered by yasiru89 6 · 0⤊ 0⤋
put t = ln x
dt/dx = 1/x
dt = 1/x dx
substitute in given equation
dy/dx +( t/(2-t)^3 =0
dy/dx = -t/(2-t)^3
dy/dx = dy/dt/(dx/dt) = xdy/dt= e^tdy/dt
dy/dt = -e^(-t)/(2-t)^3
now it can be integrated by parts
2006-09-13 05:04:49 · answer #3 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
Please writ it in brackets so that it can be expanded
2006-09-13 05:06:43 · answer #4 · answered by Amar Soni 7 · 0⤊ 0⤋