Find the x-values (if any) at which 
is not continuous.
?
A. 
is not continuous at 
and the discontinuity is nonremovable.
B. is not continuous at
and the discontinuity is removable.
C. is continuous for all real 
.
D. is not continuous at
and the discontinuity is removable.
E. is not continuous at
and 
is a removable discontinuity.
Answer: A
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Find the value.If F(x, y) = tan-1 
, find Fx(-5, 6) and Fy(-5, 6).
A. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
B. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
C. Fx(-5, 6) = - 
, Fy(-5, 6) = 
D. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
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A. 103 B. 89 C. 90 D. 91
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