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 center of mass of a thin infinite region in the first quadrant bounded by the coordinate axes and the curve 
if 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Divide. 
A. 1,336 R 1 B. 1,334 C. 1,334 R 1 D. 1,336
Mathematics
Use the graph to complete the identity.
= ? 
A. sin x - 5 B. cos x - 3 C. cos x + 3 D. sin x + 5cos x
Mathematics
Translate the phrase into a mathematical expression and then find the result.957 miles increased by 211 miles
A. 957 - 211; 1068 miles B. 957 + 211; 1168 miles C. 957 + 211; 1178 miles D. 957 + 211; 1158 miles
Mathematics