Find all relative extrema for the function, and then match the equation to its graph.
z = y4 - 2y2 + x2 - 
A. Relative minima of - 
at (0, 1) and
at (0, -1); saddle point at (0, 0)
B. Saddle points at (0, 0), (-1, 1), (1, -1), (1, 1),
and (-1, -1)
C. Relative maxima of 
at (0, 1) and at (0, -1);
saddle point at (0, 0)
D. Relative maxima of 
at (0, 1) and at (0, -1);
saddle point at (0, 0)
Answer: A
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A. 
B. 
C. 0
D. Does not exist
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A. task B to one processor, task C to the other one. B. task B to one processor, task E to the other one. C. task A to one processor, task C to the other one. D. task A to one processor, task B to the other one. E. none of these
Graph the ellipse.9(x + 1)2 + 16(y - 1)2 = 144
A. 
B. 
C. 
D. 
Find all solutions of the equation in the interval [0, 2?).(2 cot x + 2
)(8 cot x - 8) = 0
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 