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    | • | In-class
    exercise for Unit 6a, we can derive the differential 
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    |  | equations for
    the following circuit in order to solve for vo(t) 
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    |  | in phase domain
    Vo. 
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    | • | However, the
    derivation may sometimes be very tedious. 
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    | Is there
    any quicker and more systematic methods to do it? 
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