MATH 3321 EXAM 2 | QUESTIONS AND ANSWERS | 2026 UPDATE
[100% CORRECT — UH.
wait=-3278607, due=1698555540, due2=0 Question number 1.
Your answer was C. Correct. /
Give the form of a particular solution of y* — 6y + 8y = —=3e% — 5xe™ + 3x.
z=Axe* + (Bx+ C)e™™ +D
z=Ae* + (Bx* + Cx)e™™ + Dx+ E
z=Axe* +(Bx+ C)e™™ +Dx + E
z=Axe* + (BX* + Cx)e™™ + Dx+E
z=Ae* + (Bx+ C)e* + Dx
None of the above.
Question number 2.
Your answer was D. Wrong. x
The linear, homogeneous differential equation of least order that has
y = 5% — 4cos(3x) + 3 sin(3x) + 5 asa solution is:
Y9 +4y” —9y" +36y =0
YO — 4y + 9y —36y" =0
118
, y " —4y"+9y - 12y=0
28
[100% CORRECT — UH.
wait=-3278607, due=1698555540, due2=0 Question number 1.
Your answer was C. Correct. /
Give the form of a particular solution of y* — 6y + 8y = —=3e% — 5xe™ + 3x.
z=Axe* + (Bx+ C)e™™ +D
z=Ae* + (Bx* + Cx)e™™ + Dx+ E
z=Axe* +(Bx+ C)e™™ +Dx + E
z=Axe* + (BX* + Cx)e™™ + Dx+E
z=Ae* + (Bx+ C)e* + Dx
None of the above.
Question number 2.
Your answer was D. Wrong. x
The linear, homogeneous differential equation of least order that has
y = 5% — 4cos(3x) + 3 sin(3x) + 5 asa solution is:
Y9 +4y” —9y" +36y =0
YO — 4y + 9y —36y" =0
118
, y " —4y"+9y - 12y=0
28
