Find the area of the region specified in polar coordinates.the region inside 
and outside 
A. 16
B. 16
C. 16
D. 16
Answer: C
Mathematics
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Evaluate the integral.
A. 14 sin x - x cos x + C B. 14 sin x - 14x cos x + C C. 14 sin x - 14 cos x + C D. 14 sin x + 14x cos x + C
Mathematics
Multiply.
x2(-8x2 + 40x + 8)
A. 2x4 + 10x3 + 2x2 B. -2x4 + 20x3 + 8x2 C. 10x4 + 2x2 D. -2x4 + 10x3 + 2x2
Mathematics
Find the surface area of the surface S.S is the upper cap cut from the sphere x2 + y2 + z2 = 25 by the cylinder 
.
A. -10? B. 10? C. 90? D. 5
Mathematics
Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find the sum of the first 41 terms of the arithmetic sequence {5n + 1}.
A. 4243.5 B. 4346 C. 4489.5 D. 4633
Mathematics