![Sketch the following real discrete-time sinusoids. Find the period of each signal. (a) cos 2 pi n. (b) cos (9 pi n/4). | Homework.Study.com Sketch the following real discrete-time sinusoids. Find the period of each signal. (a) cos 2 pi n. (b) cos (9 pi n/4). | Homework.Study.com](https://homework.study.com/cimages/multimages/16/6235605_04_24568293744250048404.png)
Sketch the following real discrete-time sinusoids. Find the period of each signal. (a) cos 2 pi n. (b) cos (9 pi n/4). | Homework.Study.com
![begin{aligned}=frac{2 pi}{omega}=2 pi sqrt{frac{R}{g_{0}}} &=1.41 text { hour. } & text { EXERCISE } text { body weighs } 144 mathrm{N} text { the surface of earth. When it is taken to begin{aligned}=frac{2 pi}{omega}=2 pi sqrt{frac{R}{g_{0}}} &=1.41 text { hour. } & text { EXERCISE } text { body weighs } 144 mathrm{N} text { the surface of earth. When it is taken to](https://toppr-doubts-media.s3.amazonaws.com/images/6802985/746c794a-bde0-4010-850c-00a2d50dfa7c.jpg)
begin{aligned}=frac{2 pi}{omega}=2 pi sqrt{frac{R}{g_{0}}} &=1.41 text { hour. } & text { EXERCISE } text { body weighs } 144 mathrm{N} text { the surface of earth. When it is taken to
![a) Resonance frequency, ${\omega }_{\mathrm{d}}^{\text{res}}/2\pi $ ,... | Download Scientific Diagram a) Resonance frequency, ${\omega }_{\mathrm{d}}^{\text{res}}/2\pi $ ,... | Download Scientific Diagram](https://www.researchgate.net/publication/348228484/figure/fig3/AS:1132445315416090@1647007411825/a-Resonance-frequency-omega-mathrmdtextres-2pi-for-cw-drive-for.jpg)