Question

how would you integrate ln(t^2 + u^2)?

Answer 1

With respect to what?!

Answer 2

very carefully :)

Answer 3

ln(x) = x + xlnx + C or something right?

Answer 4

with respect to t

Answer 5

is u a constant with respect to t?

Answer 6

if not, do you know the derivative of u with respect to t?

Answer 7

it's a diff. eq. u' = ln(t^2 + u^2)

Answer 8

You can't really integrate both sides here.

Answer 9

Ok, so you do know the derivative of u with respect to t then ;p

Answer 10

yeah