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1- Spectrum of the sinusoidal signals: f(t) = A cos(2лft + 0) Rules: 1. The amplitude is always positive. -A cos 2πfot⇒ A cos(2лfot - 180º) 2. The phase ids always measured from the real axis. A sin 2лfot A cos(2лfot - 90°) 3. If the angular frequency is used (c), the amplitude is multiplied by 2π (a) f(t)=-7 sin(3πt) - 5cos (6πt + 90º) (b) f(t)=-4 sin(106πt) + 8cos (107πt + 170º) (c) f(t)==0(-0.5)" cos[n(wot + 10°)]

1- Spectrum of the sinusoidal signals: f(t) = A cos(2лft + 0) Rules: 1. The amplitude is always positive. -A cos 2πfot⇒ A cos(2лfot - 180º) 2. The phase ids always measured from the real axis. A sin 2лfot A cos(2лfot - 90°) 3. If the angular frequency is used (c), the amplitude is multiplied by 2π (a) f(t)=-7 sin(3πt) - 5cos (6πt + 90º) (b) f(t)=-4 sin(106πt) + 8cos (107πt + 170º) (c) f(t)==0(-0.5)" cos[n(wot + 10°)]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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1- Spectrum of the sinusoidal signals: f(t) = A cos(2лft + 0) Rules: 1. The amplitude is always positive. -A cos 2πfot⇒ A cos(2лfot - 180º) 2. The phase ids always measured from the real axis. A sin 2лfot A cos(2лfot - 90°) 3. If the angular frequency is used (c), the amplitude is multiplied by 2π (a) f(t)=-7 sin(3πt) - 5cos (6πt + 90º) (b) f(t)=-4 sin(106πt) + 8cos (107πt + 170º) (c) f(t)==0(-0.5)" cos[n(wot + 10°)]
Transcribed Image Text:1- Spectrum of the sinusoidal signals: f(t) = A cos(2лft + 0) Rules: 1. The amplitude is always positive. -A cos 2πfot⇒ A cos(2лfot - 180º) 2. The phase ids always measured from the real axis. A sin 2лfot A cos(2лfot - 90°) 3. If the angular frequency is used (c), the amplitude is multiplied by 2π (a) f(t)=-7 sin(3πt) - 5cos (6πt + 90º) (b) f(t)=-4 sin(106πt) + 8cos (107πt + 170º) (c) f(t)==0(-0.5)" cos[n(wot + 10°)]
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