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(a) fundamental frequency =GCD(105,180)(3.17)GCD=15:. fundamental frequency in Hz=15H3(6){:[x(t)=11e^(-j2pi//5)+11e^(j2pi//5)+7e^(j 31//5)+7e^(-j3pi//5)],[=11[e^(-j2pi//5)+e^(j2pi//5)]+7[e^(j3pi//5)+e^(-j3pi//5)]]:}{:[=2xx11[(e^(-j pi//5)+e^(j2pi//5))/(2)]+7xx2[(e^(j3pi//5)+e^(j3pi//5))/(2)]],[x(t)=22 cos(2pi//5)+14(cos(3pi//5))]:}(c){:[x_(2)(t)=x(t-0.05)],[x_( ... See the full answer