Simplify to the form a + bi.i630 + i247
A. -1 + i
B. 1 + i
C. -1 - i
D. 1 - i
Answer: C
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = ?/6 to x = ?/2. The cross sections perpendicular to the x-axis are circular disks with diameters running from the curve 
to the curve 
A. (
- 1) ? + 
B. 
- 
C. 
- 
D. (2
- 2) ? - 
Find the first few nonzero terms of the Maclaurin series for the given function.f(x) = etan x
A. x + x2 - . . .
B. 1 + x + . . .
C. 1 + x2 + . . .
D. 
+ 2x + . . .
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the decreasing-time algorithm to schedule this project with two processors, the project finishing time is
A. 18 hours. B. 17 hours. C. 20 hours. D. 19 hours. E. none of these
Multiply.(x + 6)(x + 10)
A. x2 + 16x + 60 B. 2x + 60 C. x2 + 16x + 16 D. 2x2 + 60