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// Exa 4.9
clc;
clear;
// Given
// Referring Lissajous pattern shown in figure
wx = 1 ; // Sum of x-peak pattern
wy = 2.5; // sum of y-peak pattern
fx = 3; // frequency of horizontal signal
X = wy/wx ; // X is ratio of fy/fx
// Therefore, fy = 2.5*fx
printf(' Frequency of vertical signal = %.1f kHz \n ',X*fx);
// The answer provided in the textbook is wrong
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