// 4.1 clc; fc=1000; disp('In addition to carrier frequency of 1000kHz the other upeer and lower frequencies are') fs1=0.3; fu1=fc+fs1; printf("\nUpper side band frequency for modulating frequency of 300 Hz =%.1f kHz",fu1) fl1=fc-fs1; printf("\nLower side band frequency for modulating frequency of 300 Hz =%.1f kHz",fl1) fs2=0.8; fu2=fc+fs2; printf("\nUpper side band frequency for modulating frequency of 800 Hz =%.1f kHz",fu2) fl2=fc-fs2; printf("\nLower side band frequency for modulating frequency of 800 Hz =%.1f kHz",fl2) fs3=2; fu3=fc+fs3; printf("\nUpper side band frequency for modulating frequency of 2kHz =%.1f kHz",fu3) fl3=fc-fs3; printf("\nLower side band frequency for modulating frequency of 2kHz =%.1f kHz",fl3)