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
When do you use w = 2*pi*frequency? - Quora
⏩SOLVED:Show that for a periodic wave ω=(2 π/ λ) v. | Numerade
A particle moves on the x axis according to the equation x=x(knot) sin^2( omega×t).The motion is periodic (a)with amplitude x(knot) (b)with amplitude 2x(knot) (c)with time period 2pi/omega (d)with time period pi/omega