Find all cube roots of the complex number. Leave answers in trigonometric form.-6
- 6i
A. 
cis 70°, 
cis 190°, 
cis 310°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 80°, 
cis 200°, 
cis 320°
Answer: C
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= cscn-2 x cot x + (n - 2) 
B. 
= 
cscn-2 x cot x - 
C. 
= 
cscn-2 x cot x - 
D. 
= 
cscn-2 x cot x + 
Perform the operation and give the answer in Hindu-Arabic form.
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- 
A. 357
B. 93
C. 217
D. 113
Solve the absolute value inequality. Write your answer in interval notation.
? 1
A. (4, 12) B. (-?, -12] ? [4, ?) C. [4, 12] D. (-?, 4] ? [12, ?)
Which scenario below should be counted using permutations?
a. The number of ways the gold, silver, and bronze medal winners can be chosen in an Olympic track-and-field event (assume that there are no ties) b. The number of ways 3 people can be chosen to sit from among 8 people c. The number of ways to choose 5 lottery numbers d. The number of ways to roll a total of 7 when rolling a pair of dice