# Plot

Discussion in 'Homework Help' started by camino, Nov 12, 2009.

1. ### camino Thread Starter New Member

Sep 17, 2009
8
0
Plot the real part of v(t) = 1.414e^(-j377*t).

I'm not sure what the professor wants for this problem so any help on how to do this would be appreciated!

2. ### t_n_k AAC Fanatic!

Mar 6, 2009
5,448
782
Do you know the relationship.....?

$e^{-j\theta}=cos\theta+jsin\theta$

So

$Re(e^{-j\theta})=cos\theta$

This might help you to the next step.

3. ### t_n_k AAC Fanatic!

Mar 6, 2009
5,448
782
Sorry - I think I should have

$e^{-j\theta}=cos\theta-jsin\theta$

But the next step in the process required will be the same ....