Let U = {q, r, s, t, u, v, w, x, y, z}, A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. Find the indicated set.
? 
A. {w, y}
B. {q, r, s, t, u, v, x, z}
C. {q, s, u, v, w, x, y, z}
D. {r, t}
Answer: D
Mathematics
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A. x = 26
B. x = 
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D. x = 6?2
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Solve the problem by integration.Find the volume generated by revolving the first-quadrant area bounded by 
and x = 5 about the y-axis.
A. 2? ln 6264
B. 4? ln 6264
C. 4? ln 
D. 8? ln 
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Use implicit differentiation to find dy/dx and d2y/dx2.2y - x + xy = 2
A. 
= 
; 
= 
B. 
= - 
; 
= 
C. 
= 
; 
= 
D. 
= - 
; 
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Write the conjugate 
of the complex number z. Then find z
.z = 
- 
i
A. 
= 
+ 
i, z
= 
B. 
= 
+ 
i, z
= 0
C. 
= 
+ 
i, z
= 
D. 
= 
+ 
i, z
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