Which of the following differential equations can be solved by utilizing the method of undetermined coefficients? I: y" – ty' + 3y = e II : y") – y = cos t – sin t et – cos t III: 2y" + 2y/ – 6y t IV...

Extracted text: Which of the following differential equations can be solved by utilizing the method of undetermined coefficients? I: y" – ty' + 3y = e II : y") – y = cos t – sin t et – cos t III: 2y" + 2y/ – 6y t IV : y" +3y' – 2y = tan t +t A) only II B) I and III C) I and II D) II and IV E)III and IV