Amplitude Spectrum Exercise: What is the spectrum of: x(t)=10cos(6πt)+7sin(8πt)−3sin(16πt)x(t)=10cos(6πt)+7cos(8πt−π/2)+3cos(16πt+π/2)x(t)=5[ej(…..t)+e−j(…..t)]+3.5[ej(….t)+e−j(….t)]+1.5[ej(….t)+e−j(….t)]​