Is this correct?
2007-03-14 19:04:00 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
here is the problem again it looks cut off on the preview.
from 1 to sqrt(2) for 2dx/x(sec^(-1)x)sqrt(1-x^2)
2007-03-14 19:06:27 · update #1
Just to make sure I understand your notation, you're trying to integrate from 1 to sqrt(2)
2arcsec(x)sqrt(1-x^2)/x
right?
I tried integrating by parts with every obvious choice of u and v, but it just got more complex and hard to solve. This problem needs what my 1st year college profs called a "cheap trick," perhaps a relevant identity or formula.
You came up with a solution, how did you get to it? It would be easier for me to look at your steps and see if they're right, than to do it all from scratch.
I've forgotten too much since college to tackle this in a reasonable amount of time. If you don't get the answer soon, try asking again and post the steps you took to get to 2ln(4)/pi.
2007-03-14 21:13:11 · answer #1 · answered by kozzm0 7 · 0⤊ 0⤋
no. the whole problem is equal to this: 2+2=5
2007-03-15 02:11:24 · answer #2 · answered by Lil Jon 2 · 0⤊ 0⤋
This question makes me glad that I NEVER have to do this again.
2007-03-15 02:15:58 · answer #3 · answered by poolshark_63 2 · 0⤊ 0⤋