Final answer:
To solve the given differential equation, define a new function F₁(t) and convert the equation.
Step-by-step explanation:
The given equation is a second-order linear homogeneous differential equation with constant coefficients:
x'' + 4x' + 43x = 11cos(6t)
To solve this equation, let's define a new function F₁(t) = F(t)/(mω). We can now rewrite the equation as:
F₁''(t) + 4F₁'(t) + 43F₁(t) = 11cos(6t)
Now, we have converted the equation from the original variable x to the new variable F₁(t).