Question

integrate (e^tanx)/(cos^2x)dx from 0 to pie/4

Answer 1

hi jackie! :)

Answer 2

heya

Answer 3

\[\large \int\limits\limits \frac {e^{tanx}}{\cos^2x} dx\]

Answer 4

is it that?

Answer 5

oh.. wait...

Answer 6

yes

Answer 7

from 0 to pi/4

Answer 8

\[\huge \int\limits\limits\limits \frac {e^{tanx}}{\cos^2x} dx\]
is it that?

Answer 9

u-sub... u=tanx

Answer 10

ook

Answer 11

want a hint to make it easy? write it as
\[\int_0^{\frac{\pi}{4}}e^{\tan(x)}sec^2(x)dx\] then a u-sub suggests itself right away

Answer 12

ok... there u go...

Answer 13

yeah i guess so. but when it comes to taking finals i probably wont remember to do it that way.

Answer 14

when handling integrals involving trig functions, consider the identities you can use to simplify things... if possible...:)

Answer 15

ok? got an answer?

Answer 16

no, confused.