Find the directional derivative of $f ( x , y ) = x ^ { 3 } y + 5 x y ^ { 2 }$ at the point (1, 1)in the direction of $3 \vec { i } + 5 \vec { j }$ .

Name: Find the directional derivative of $f ( x , y ) = x ^ { 3 } y + 5 x y ^ { 2 }$ at the point (1, 1)in the direction of $3 \vec { i } + 5 \vec { j }$ .
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The Answer of Find the directional derivative of $f ( x , y ) = x ^ { 3 } y + 5 x y ^ { 2 }$ at the point (1, 1)in the direction of $3 \vec { i } + 5 \vec { j }$ .

Find the Directional Derivative Of f(x,y)=x3y+5xy2f ( x , y ) = x ^ { 3 } y + 5 x y ^ { 2 }f(x,y)=x3y+5xy2

Find the Directional Derivative Of $f ( x , y ) = x ^ { 3 } y + 5 x y ^ { 2 }$