Find the limit.
sec x
A. 0
B. -?
C. ?
D. 1
Answer: C
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Find the area enclosed by the given curves.y = sin x, y = csc 2 x, 
? x ? 
A. 1 - 
B. 
+ 
C. 
- 
D. 
- 
Solve the problem.The shape and density of a thin shell are indicated below. Find the moment of inertia about the z-axis.Shell: "nose" of the paraboloid x2 + y2 = 2z cut by the plane z = 1Density: ? = 
A. Iz = 
?
B. Iz = 16?
C. Iz = 
?
D. Iz = 2?
Find the domain of the rational function.f(x) = 
A. all real numbers except ±9
B. all real numbers except ±9, 
C. all real numbers except 9
D. all real numbers except 81
Determine if each ordered pair is a solution to the given system of inequalities in two variables.y = x - 1y2 = -4x(i) (-1, -2); (ii) (1, 0)
A. (i) No; (ii) No B. (i) Yes; (ii) No C. (i) No; (ii) Yes D. (i) Yes; (ii) Yes