Find the Derivative of the Function $$r = \left( \frac { 1 + 7 \theta } { 7 \theta } \right) ( 7 - \theta )$$

question 451

Multiple Choice

Find the derivative of the function.
- $$r = \left( \frac { 1 + 7 \theta } { 7 \theta } \right) ( 7 - \theta )$$

• A) \(\frac { \mathrm { dr } } { \mathrm { d } \theta } = \frac { 1 } { \theta ^ { 2 } } + 1\)
• B) \(\frac { d r } { d \theta } = \frac { 1 } { \theta ^ { 2 } } + 7\)
• C) \(\frac { d r } { d \theta } = \theta ^ { 2 } - 1\)
• D) \(\frac { d r } { d \theta } = - \frac { 1 } { \theta ^ { 2 } } - 1\)

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