Question

I think i got that wrong answer... Integrating with e

Answer 1

\(\Large u = e^x+e^{-x}\)

Answer 2

I got \[-2/(e^x+e^{-x}) +C\]

Answer 3

Yes i used that u, but Im checking my answer against my calculator by the definite integral from 0 to 2, and comparing that to x=2 in my answer and im getting different numbers

Answer 4

what you got is correct

Answer 5

Can you convince me?

Answer 6

0.734
did you get this or your calculator got this ?

Answer 7

My calculator got that for the integral, but when i plugged in 2 to my answer i got -.266

Answer 8

Could be a problem with C

Answer 9

just 2 ?
didn't you plug in 0 too ?

Answer 10

−2/(e^2+e−2) - −2/(1+1)

Answer 11

Do you mean plug in x=0 to −2/(ex+e−x)+C to find C?

Answer 12

I just typed in the integral on my ti-84 from 0 to 2

Answer 13

which yields 0.734

Answer 14

no...