Use implicit differentiation to find dy/dx.xy + x + y = x2y2
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Which of the following is equivalent to the expression:? 
A.
?
x
B.
?
x
C.
?
x2
D.
?
x
E.
?
x
Mathematics
Use the given information to find the exact value of the trigonometric function.cos ? = - 
, sin ? > 0
Find cos 
.
A. 
B. 
C. - 
D. - 
Mathematics
Convert 80 ounces to pounds.
A. 20 B. 30 C. 5 D. 10 E. 60
Mathematics
Find all the local maxima, local minima, and saddle points of the function.
A. f(0, 0) = -3, test is inconclusive B. f(3, 0) = -3, local minimum; f(0, 3) = -3, local minimum C. f(3, 3) = 159, local maximum D. f(0, 0) = -3, saddle point; f(3, 3) = 159, local maximum
Mathematics