Solve the Differential Equation $$y ^ { tt } - 8 y ^ { t } + 25 y = 0$$

question 90

Multiple Choice

Solve the differential equation. Select the correct answer.
$$y ^ { tt } - 8 y ^ { t } + 25 y = 0$$

• A) \(y = c e ^ { 4 x } \cos ( 3 x )\)
• B) \(y = c _ { 1 } \cos ( 3 x ) + c _ { 2 } x \sin ( 3 x )\)
• C) \(y = e ^ { 4 x } \left( c _ { 1 } \cos ( 3 x ) + c _ { 2 } \sin ( 3 x ) \right)\)
• D) \(y = e ^ { 4 x } \left( c _ { 1 } \cos ( 3 x ) + c _ { 2 } x \sin ( 3 x ) \right)\)
• E) \(y = e ^ { 4 x } \left( c _ { 1 } \cos ( 4 x ) + c _ { 2 } x \sin ( 4 x ) \right)\)

Learn the concepts of price elasticity and its impact on pricing strategies.

Understand and calculate the target profit in pricing decisions.

Understand cost-plus pricing strategies and how markup percentages are calculated from total variable costs and full costs.

Gain knowledge on the relationship between production costs, mark-up percentages, and final product pricing.

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