Simplify.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Given the graph of f, find any values of x at which f ' is not defined.
A. x = 5 B. x = 2 C. x = 2, 5 D. Defined for all values of x
Mathematics
Use implicit differentiation to find dy/dx.xy + x = 2
A. 
B. 
C. - 
D. - 
Mathematics
Solve the problem.Find the point on the curve x = 4 sin t, y = cos t, - 
? t ? 
, closest to the point 
. (Hint: Minimize the square of the distance as a function of t.)
A. 
B. (-4, 0)
C. 
D. (4, 0)
Mathematics
Find all real solutions of the equation.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics