Use various trigonometric identities to simplify the expression then integrate.
cos 5? d?
A. 
sin 5? - 
sin 3? - 
sin 7? + C
B. 
sin 5? - 
sin 7? - 
sin 3? + C
C. 
sin 3? - 
sin 5? - 
sin 7? + C
D. 
sin 5? - 
sin 3? - 
sin 7? + C
Answer: A
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Solve the following quadratic equation by completing the square. Make sure your answer is simplified completely. If there are no real solutions, so state.3x2 + 24x + 27 = 0
A. x = 4 - 
or x = 4 + 
B. x = -4 + 
C. no real solutions
D. x = -4 - 
or x = -4 + 
Solve the differential equation.y' + y = y2
A. 
B. 1 + Cex
C. 1 - Ce-x
D. 
Solve the problem.Calculate the volume of the parallelepiped with edges a = 
, b = 
, and c = 
.
A. 8 B. 4 C. 20 D. 16
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 7cos ?x, y = 0, x = -0.5, x = 0.5
A. 49?
B. 
?
C. 
?
D. 98?