- #1

w3390

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## Homework Statement

If x= Acos([tex]\omega[/tex]t + [tex]\delta[/tex]), then one can also write it as x = Re(B[tex]e^{i\Phi}[/tex]). Find B and [tex]\Phi[/tex] in terms of A, [tex]\omega[/tex], and [tex]\delta[/tex] if B is real.

## Homework Equations

## The Attempt at a Solution

Not sure where to start on this one. I know you guys can't give answers. All I'm looking for is where to get started. Any help would be appreciated.