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Unformatted text preview: Homework 1 ECE 220 Due February 3, 2005 With some of the problems, we reference a relevant worked problem on the CD that comes with your textbook. The worked problems on the CD are just a reference point in the case that you are unsure how to do a problem. These worked problems are indicated by the letters CD followed by the name of the problem. Please do not submit answers for the CD problems. 1. Find the frequency, radian frequency, phase shift, and amplitude of the following three signals: (a) x ( t ) = 5 cos(2 500 t + 2 ) (b) y ( t ) = 10 cos( 3 ) cos(314( t + 1 100 )), use = 3 . 14. (c) z ( t ) = (2 + j )(2- j ) cos( 250 t + 3 ) CD: Chapter 2 homework - Determine sinusoidal parameters from a plot. 2. Use the MacLaurin series expansion for e x , cos( ) and sin( ) to verify Eulers formula. CD: Chapter 2 Exercise 2.1 3. Use Eulers formula to prove DeMoivres formula....
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This homework help was uploaded on 10/10/2007 for the course ECE 2200 taught by Professor Johnson during the Spring '05 term at Cornell University (Engineering School).
- Spring '05