Use Implicit Differentiation to Find Dy/dx $$y \cos \left( \frac { 1 } { y } \right) = 4 x + 4 y$$

question 203

Multiple Choice

Use implicit differentiation to find dy/dx.
- $$y \cos \left( \frac { 1 } { y } \right) = 4 x + 4 y$$

• A) \(\frac { 4 } { \sin \left( \frac { 1 } { y } \right) + y \cos \left( \frac { 1 } { y } \right) - 4 }\)
• B) \(\frac { 4 y ^ { 2 } } { \sin \left( \frac { 1 } { y } \right) - 4 y ^ { 2 } }\)
• C) \(\frac { 4 y } { \sin \left( \frac { 1 } { y } \right) + y \cos \left( \frac { 1 } { y } \right) - 4 y }\)
• D) \(\frac { 4 - y \sin \left( \frac { 1 } { y } \right) } { \cos \left( \frac { 1 } { y } \right) - 4 }\)

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