Select the correct expression for the output signal.
1) v_(out )(t)=4.472cos(500 pi t-26.57 deg)+3.536cos(1000 pi t-45 deg)+2.236cos(2000 pi t-63.43 deg )V
2) v_(out )(t)=3.536cos(500 pi t-26.57 deg )+2.2
3) v_(out )(t)=4.472cos(500 pi t-26.57 deg)+3.536cos(1000 pi t-45 deg)
4) v_(out )(t)=2.236cos(2000 pi t-63.43 deg )V