Can someone check my working out and point out errors (if any). Also, if correct, can someone show me how to simply it so that it is equivalent to any of the forms:

__________________

Printable View

- August 3rd 2008, 10:38 AMSimplicityIntegrating 'sec(x)' Using T-Substitution
Can someone check my working out and point out errors (if any). Also, if correct, can someone show me how to simply it so that it is equivalent to any of the forms:

__________________

- August 3rd 2008, 11:40 AMChop Suey
Your way looks correct, but have you tried to do this by simply multiplying with ?

- August 3rd 2008, 11:53 AMSimplicity
- August 3rd 2008, 12:31 PMflyingsquirrel
Hi, Air !

You forgot few absolute values...

To find the first form of the answer, note that and since we get what we were looking for. (don't forget the absolute value :D)

To "find" the second form of the answer, I take your work from (*) and do few algebraic manipulations :

- August 3rd 2008, 02:41 PMSoroban
Hello, Air!

Your work is correct . . . nice going!

The simplification is tricky.

Quote:

We have: . .

. . .

. . .

. .

Wow! . . . I like your solution, flyingsquirrel!

.