I need help on this question. This is actually my working. I am certain i got my AC wrong. I1.

I seldom do AC source.

DC I should be correct.

Could anybody help?

Question is Find the steady current IL(T)

The answer is -2 +0.707 cos (10t - 45degrees) Ampere

I believe the 0.707 is the RMS. But cant figure anything out.

Thanks.