Let $z = 4 x ^ { 2 } + 2 y ^ { 2 }$ and suppose that $( x , y )$ changes from $( 2 , - 1 )$ to $( 2.01 , - 0.98 )$ (a) Compute $\Delta z .$ (b) Compute $d z$

Name: Let $z = 4 x ^ { 2 } + 2 y ^ { 2 }$ and suppose that $( x , y )$ changes from $( 2 , - 1 )$ to $( 2.01 , - 0.98 )$ (a) Compute $\Delta z .$ (b) Compute $d z$
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The Answer of Let $z = 4 x ^ { 2 } + 2 y ^ { 2 }$ and suppose that $( x , y )$ changes from $( 2 , - 1 )$ to $( 2.01 , - 0.98 )$ (a) Compute $\Delta z .$ (b) Compute $d z$

Let z=4x2+2y2z = 4 x ^ { 2 } + 2 y ^ { 2 }z=4x2+2y2

Let $z = 4 x ^ { 2 } + 2 y ^ { 2 }$