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Find the Differential Of z=1x+y2z = \frac { 1 } { x + y ^ { 2 } }

Question 249

Multiple Choice

Find the differential of z=1x+y2z = \frac { 1 } { x + y ^ { 2 } } at the point (x,y) =(1,1) ( x , y ) = ( 1,1 ) .


A) dxdy- d x - d y

B) 14dx12dy- \frac { 1 } { 4 } d x - \frac { 1 } { 2 } d y
C) dx12dy- d x - \frac { 1 } { 2 } d y
D) 12dxdy- \frac { 1 } { 2 } d x - d y
E) dx+dyd x + d y
F) 14dx+12dy\frac { 1 } { 4 } d x + \frac { 1 } { 2 } d y

G) dx+12dyd x + \frac { 1 } { 2 } d y

H) 12dx+dy\frac { 1 } { 2 } d x + d y

Correct Answer:

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