y^{\prime \prime}+3 y^{\prime}+4 y=2 \cos 2 t

Cheyanne Leigh

Cheyanne Leigh

Answered question

2021-05-30

y+3y+4y=2cos2t

Answer & Explanation

Szeteib

Szeteib

Skilled2021-05-31Added 102 answers

y+3y+4y=2cos2t
y=3y4y+2cos2t
We use the substitution
y=v
y=v
We substitute y' and y'' in equation
y=3y4y+2cos2t
we get
v=3v4y+2cos2t
Therefore, we get system of first-order equations
y=v
v=3v4y+2cos2t

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