Solve the Differential Equation Using the Method of Variation of Parameters

question 23

Short Answer

Solve the differential equation using the method of variation of parameters. $$y ^ { tt } - 3 y ^ { t } = e ^ { 9 x }$$

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Definitions:

Administrative Expense

Costs associated with the general administration of a business, including salaries of senior executives, legal and financial fees, and other general expenses.

Fixed Cost

Overheads that are not affected by the volume of production or sales, covering rent, employee salaries, and insurance fees.

Ending Inventory

Ending inventory refers to the final value of goods available for sale at the end of an accounting period.

Lawn Chairs

Portable chairs designed for use outdoors, particularly in lawns, gardens, or for leisure activities.