Question

integrate this one please

Answer 1

\[\int\limits \frac{dx}{16 + [lnx]^{2}}\]

Answer 2

try:
\[\int\limits\frac{dx}{1+(\frac{\ln(x)}{4})^2 }\]

Answer 3

i have my answer, i am just checking if it's right.

\[\frac{1}{4} \arctan \frac{lnx}{4}+C\]

Answer 4

this integral cannot be represented in terms of elementary functions
http://www.wolframalpha.com/input/?i=integral%201%2F(16%2B(lnx)%5E2)&t=crmtb01
are you sure you typed it correctly?

Answer 5

if it were\[\int\frac{dx}{16x+x(\ln x)^2}\]you would get your answer

Answer 6

that was really the equation. i typed it correctly

Answer 7

then the answer is really what I have in the link, and involved the exponential integral \(Ei\)

Answer 8

thanks

Answer 9

welcome