Question

Indefinite Integral, find it.
((sec x tan x)/ (sec x -1)) dx

Answer 1

make a substitution, let u=secx

Answer 2

the sec x in the denom? or numerator?

Answer 3

this was posted last night I thinkk from memory lold

Answer 4

Simply the numerator is the derivative of the denominator. And hence, the integral I:
I=ln Isecx-1I+c

Answer 5

Oh, let u=secx-1 my bad, otherwise you have two use substitutions. To respond to your last comment, it's not a matter of which secx, you are making a statement saying that ALL secx will now equal another variable called "u".

Answer 6

thanks guys!