Question

gah

工數
請問一下第九題該怎麼解呢？

V 7. y" + 7y' + 12y = 21e3, y(0) = 3.5,
y'(0) = -10
Hovoz z STNOST290 100 2 2
8. y" – 4y' + 4y = 0, y(0) = 8.1, y'(0) = 3.9
stars
9. y" – 3y' + 2y = 4t – 8, y(0) = 2, y'(0) = 7
10. y" + 0.04y = 0.021?, y(0) = -25, y' (O) = 0
11. y" + 3y' + 2.25y = 913 + 64, y(0) = 1,
eable se
y'(0) = 31.5
anton32 X