Find the directional derivative of $f ( x , y ) = x ^ { 2 } - 3 x y + 2 y ^ { 2 }$ at $( - 1,2 )$ in the direction of $\mathbf { i } + \sqrt { 3 } \mathbf { j }$

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

Find the Directional Derivative Of f(x,y)=x2−3xy+2y2f ( x , y ) = x ^ { 2 } - 3 x y + 2 y ^ { 2 }f(x,y)=x2−3xy+2y2

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