Find 
given the following vector function.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Integrate the function.
, x > 
A. 
ln
+ C
B. 
ln
+ C
C. 
ln
+ C
D. 
ln
+ C
Mathematics
Find the center and radius of the circle.x2 + y2 + 2y = 8
A. (1, 0); 4 B. (0, -1); 3 C. (0, 1); 3 D. (0, 2); 2
Mathematics
Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.2x + 6y = 62x + 2y = 18
A. ( -12, 2) B. (12, -3) C. (-3, 12) D. (-12, 6)
Mathematics
Find the direction angles of the vector. Round to the nearest degree, if necessary.v = -2i + 3j - 4k
A. ? = 119°, ? = 43°, ? = 166° B. ? = 115°, ? = 51°, ? = 147° C. ? = 113°, ? = 55°, ? = 140° D. ? = 112°, ? = 56°, ? = 138°
Mathematics