Find the exact value of the expression.cos
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate the double integral over the given region.
R = {(x, y): 0 ? x ? 1, 0 ? y ? 1}
A. 
(e5 - e3 - e2 + 1)
B. 
(e5 - e3 - e2 - 1)
C. 
(e5 - e3 - e2 - 1)
D. 
(e5 - e3 - e2 + 1)
Mathematics
Use trigonometric identities to solve each equation in the interval [0, 2?] tan2 x = - 
sec x
A. 
B. 
C. 
D. 
Mathematics
Find a decimal approximation for the fraction or mixed number, rounded to the given place.
; Round to the nearest thousandth.
A. 0.868 B. 0.667 C. 0.864 D. 0.867
Mathematics
Use the formula W = fd, where f represents a force, and d represents the distance that the force is applied.Find the work done, W, where f = 
and d = 
.
A. W = 121.0 B. W = 21.0 C. W = 212,100.0 D. W = 22.0 E. W = 210,000.0
Mathematics