Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Find the area bounded by the x-axis, the curve 
and 
.
A. 
ln 
B. 2 ln 7
C. ln 
D. ln 7
Mathematics
Use substitution to factor the trinomial.7y10 - 41y5 - 56
A. (7y5 + 8)(y5 - 7) B. y8(7y + 8)(y - 7) C. (7y5 + 7y3 + 8)(y5 - 8y3 - 7) D. (7y5 - 8)(y5 + 7)
Mathematics
Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 
B. 
C. 
D. 
Mathematics
Find the limit, if it exists.
(x2 - 16 + 
)
A. Does not exist B. -10 C. 4 D. -4
Mathematics