Solve the problem.Find a unit vector perpendicular to plane PQR determined by the points P(-3, -1, 2), 
and 
A. ± 
B. ± 
C. ± 
D. ± 
Answer: B
Mathematics
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Evaluate the improper integral or state that it is divergent.
A. 20 B. -20 C. 0 D. Divergent
Mathematics
Shade the region(s) that represents the set described.B ? (A ? C')
A. 
B. 
C. 
D. 
Mathematics
Without using a calculator, determine the value of the trigonometric function or state that the value is undefined.csc (1020°)
A. - 
B. - 
C. - 
D. - 
Mathematics
Subtract. Write the answer in lowest terms as a mixed number.
A. 5
B. 5
C. 6
D. 4
Mathematics