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Question
Determine the order and degree (if defined) of the following differential equation:-
y"' + 2y" + y' = 0
Solution
y"' + 2y" + y' = 0
The highest order derivative in the given equation is y''' and its power is 1.
Therefore, the given differential equation is of third order and first degree.
i.e., Order = 3 and degree = 1
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