$\text { Find the particular solution of the differential equation } \frac { d r } { d s } = e ^ { y - 7 s } \text { that satisfies the }$

question 22

Multiple Choice

$\text { Find the particular solution of the differential equation } \frac { d r } { d s } = e ^ { y - 7 s } \text { that satisfies the }$ initial condition $r ( 0 ) = 0$ .

• A) \(r = \ln \left( 7 + e ^ { - 7 s } \right) + C\)
• B) \(r = \ln ( 7 ) - \ln \left( 6 + e ^ { - 7 s } \right)\)
• C) \(r = e ^ { \gamma - 7 s }\)
• D)\(r = \ln \left( \frac { 8 + e ^ { - 7 s } } { 7 } \right)\)
• E)\(r = \left( 1 + e ^ { - 7 s } \right) ^ { 7 }\)

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Effective Interest Method

A method of calculating the interest revenue for an investment where the interest rate is compounded with each period.

Present Value

The present monetary value of a future sum or a series of cash payments, considering a designated rate of return.

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The cost incurred by an entity for borrowed funds, which is charged as an expense on the income statement over the period the funds are borrowed.