- #1

hdp12

- 68

- 2

## Homework Statement

I am in an Intro to EE class and we were given a homework assignment including the following question:

Find the average and rms values of the signal:

x(t)=3cos(7ωt)+4

I have formulas for average power and rms but they include V & I, however the signal was given as x(t). I understand that this is arbitrary.. or something but basically I'm extremely lost and need help.

Thanks

## Homework Equations

P

_{av}= 1/T ∫_0^T p(t)dt = 1/T ∫_0^T ½VI cos(θ)dt + 1/T ∫_0^T ½VI cos(2ωt-θ)dt

P

_{av}= ½VI cos(θ)

## The Attempt at a Solution

I don't even know where to start.