Question 10
Multiple Choice
For f(x,y) =17x3−12xy+y3 find all values of x and y such that fx(x,y) =0 and fy(x,y) =0 simultaneously.
A) (0,0) ,(−172/34,−171/34)
B) (0,0) ,(172/34,171/34)
C) (0,0) ,(−171/34,171/34)
D) (0,0) ,(−171/34,−171/34)
E) (0,0) ,(171/34,−171/34)
Correct Answer:

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