Yummy! integratetion of secx

[delgeezee]

Can someone show me how to ingrate sec x without using a formula.
I remember you had to multiply the integrand, sec x, with something .



\(\displaystyle \int \! secx dx\)

 

[delgeezee]

Crap nevermind, check this out. All you need to use is trickery.
http://www.math.ubc.ca/~feldman/m121/secx.pdf