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MCQPCHEM$12.$P$\mathrm{.}004.$DV$.$

This question has several parts that must be completed sequentially.

Derivation

Solve the following differential equations.

$($a$)$ at $t=0$

$($b$)$ at $t=0$

Prove in both cases that $x(t)$ oscillates with frequency $\frac{}{2}.$

Step $1$ of $4$

Solve the following differential equations. $($Use the following as necessary: $A,,$

$($