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## Homework Statement

What are the phasors F(t) and G(t) corresponding to the following functions:

f(t) = Acosω

_{1}t

__g(t) = Acosω__

**and**_{2}t

Draw the phasors on Argand diagram as well as F(t)+G(t) at t = [itex]\pi[/itex]/(2ω

_{1})

and from the diagram get f(t)+g(t) as a cosine identity in the simplest form.

I tried plotting the F(t) + G(t),, but I couldn't get the angle nor the magnitude of it! any help will be appreciated ;)