Find the Directional Derivative of the Function $f ( x , y ) = y ^ { 2 } \ln x$

question 81

Multiple Choice

Find the directional derivative of the function $f ( x , y ) = y ^ { 2 } \ln x$ at the point $( 1,2 )$ in the direction $( 3,4 )$ .

• A) \(\frac { 5 } { 16 }\)
• B)0
• C) \(\frac { 12 } { 5 }\)
• D)12
• E)1
• F) \(\frac { 16 } { 5 }\)
• G) \(\frac { 5 } { 12 }\)
• H) \(\frac { 1 } { 12 }\)

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