- #1
Armin
Homework Statement
Express the following in the form x = Re{Aeiαeiωt}
(a) x= cos(ωt) + sin(wt)
(b) x= sin(ωt +π/4) + cos(ωt)
(c) x= 2cos(ωt+π/3) + (√3)sin(ωt)-cos(ωt)
Homework Equations
cos x = 1/2 e^ix + 1/2 e^-ix
sin x = − i/ 2e^ix + i/2 e^−ix
The Attempt at a Solution
To be honest, I have no clue where to start. I do not know what the Re (Short for Real) asks for. There is no imaginary number in the functions but there are imaginary numbers in the form it needs to be expressed. Any help to point me in the right direction will be appreciated.
-A
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