Half wave uncontrolled rectifier, how to integrate i(wt) to get average current?

[humvivz]

i(wt)= 0.095sin(wt-0.361)+0.331e^(-wt/0.377)

Iavg= (1/2?)? i(wt) d(wt), from wt= 0 to 3.5

i have no idea to solve the equation. Please help. Thanks.

[Christe4nM]

Don't take offence please, but is this a homework question?

Little hint for solving: your function is basically a combination of two functions sin(t) and e^(t). Integrate each separately, then add the results.
Or in math terms: integral(u(t)) and u(t) = f(t) + g(t) then integral(u(t)) = integral(f(t)) + integral(g(t))

[Ziltoid]

or feed it to Wolfram alpha.

http://www.wolframalpha.com