27. y'' + 25y = sin(4t),

y(0) = 0, y'(0) = 0.

Plot the component curves and the orbit, the latter for the rectangle |y|Any surprises?

28. Hearts and Eyes: Find a solution formula for y'' + 25y = sin&(wt), where w is not equal 5. Plot the solution curve of the IVP with y(0) = y'(0), where w=4. Plot the orbit for 0Repeat with w=1. Overlay the graphs.

Typeset your solution with math symbol editor like LateX. Please, no

stuff like

y(0) = 0, y'(0) = 0.

Plot the component curves and the orbit, the latter for the rectangle |y|Any surprises?

28. Hearts and Eyes: Find a solution formula for y'' + 25y = sin&(wt), where w is not equal 5. Plot the solution curve of the IVP with y(0) = y'(0), where w=4. Plot the orbit for 0Repeat with w=1. Overlay the graphs.

Typeset your solution with math symbol editor like LateX. Please, no

stuff like

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