Simplify. Unless otherwise specified, assume that variables can represent any number.
A. 
B. 3 - x
C. x - 3
D. 
- 3
Answer: C
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Use integration by parts to establish a reduction formula for the integral.
A. 
= 
cosn-1 x sin x + 
B. 
= cosn-1 x sin x - (n - 1) 
C. 
= - cosn-1 x sin x + (n - 1) 
D. 
= 
cosn-1 x sin x - 
Solve the problem.Find the dimensions of a rectangle whose perimeter is 36 feet and whose area is 56 square feet.
A. 5 feet by 13 feet B. 3 feet by 15 feet C. 4 feet by 14 feet D. 3 feet by 13 feet
For the compound inequality, decide whether intersection or union should be used. Then give the solution set in both interval and graph forms.4x + 2 ? -6 or 4x ? -4
A. Intersection; ?
B. Union; (-?, -2] ? [-1, ?)
C. Intersection; [-2, -1]
D. Union; (-?, ?)
Find the integral by using integration by parts or other techniques. Round the answer to four decimal places if necessary.
A. 7.7889 B. 9.2483 C. 4.2485 D. 5.9007