Question

Find the indefinite integral.

Answer 1

found it.

Answer 2

\[\int\limits_{?}^{?}[e ^{-t} \sin(t)i + e^{−t} \cos(t)j ]dt\]

Answer 3

'Best Response'

Answer 4

disregard the question marks

Answer 5

Well, you can split up the integral, and then wolfram reveals something not too horrible, but I'm not sure how to solve this without some guess work.

Answer 6

\[\frac{ e^{-t} }{ 2 }[-\sin(t)-\cos(t)]i+\frac{ e^{-t} }{ 2 }[-\cos(t)+\sin(t)]j\]
I only don't understand how its over "2"