Solve the equation.|r - 1| = 3
A. 2, 4
B. -4
C. -2, 4
D. empty set
Answer: C
Mathematics
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Find the angle between u and v in radians.u = 9i - 9j - 7k, v = 3i + 7j - 6k
A. 1.57 B. 1.53 C. 0.04 D. 1.55
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Find x in the figure.
A. 
B. 
C. 17
D. 
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Use a sum or difference identity to find the exact value.tan 
A. -1 - 
B. -2 - 
C. -1 - 
D. -1
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Decompose into partial fractions.
A. 
+ 
+ 
+ 
+ 
B. 
+ 
- 
+ 
+ 
C. 
+ 
+ 
+ 
+ 
D. 
+ 
+ 
+ 
+ 
Mathematics