Find Dy/dt $$y = \left( e ^ { \cos ( t / 9 ) ) ^ { 4 } } \right.$$

question 489

Multiple Choice

Find dy/dt.
- $$y = \left( e ^ { \cos ( t / 9 ) ) ^ { 4 } } \right.$$

• A) \(- \frac { 4 } { 9 } \left( e ^ { \sin ( t / 9 ) ) ^ { 3 } } \right.\)
• B) \(\frac { 4 } { 9 } \sin \left( \frac { \mathrm { t } } { 9 } \right) \mathrm { e } ^ { 3 \cos ( \mathrm { t } / 9 ) }\)
• C) \(- \frac { 4 } { 9 } \sin \left( \frac { \mathrm { t } } { 9 } \right) \mathrm { e } ^ { 4 \cos ( \mathrm { t } / 9 ) }\)
• D) \(\frac { 4 } { 9 } \cos \left( \frac { t } { 9 } \right) \mathrm { e } ^ { 4 \cos ( \mathrm { t } / 9 ) }\)

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Definitions:

Accrued Interest

The interest that has accumulated on a bond or loan but has not yet been paid out to the lender or bondholder.

Note Payable

A written promise to pay a specific amount of money, with or without interest, at a future date.

Total Liabilities

The sum of all financial obligations a company owes to external parties, including long-term and short-term liabilities.