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| 1. | Solve for  if  and  .
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| 2. | Solve for  if  , and  .
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| 3. | Solve for  if  , and  .
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| 4. | Solve for if  and  .
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| 5. | Solve for if  and  .
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| 6. | Draw the sum of the following vectors.
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| 7. | Draw the sum of the following vectors.
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| 8. | Let  and  be points with coordinates (1,2) and (3,4) respectively. What are the coordinates of the position veector equal to  ?
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| 9. | Let  be position vectors with coordinates  and  respectively. Then what are the coordinates of a positional vector equal to
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| 10. | Let  be a positional vector whose polar coordinates are  . What are Cartesian coordinates of ?
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| 11. | Let  be a positional vector with coordinates  . Then
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| 12. | Consider the matrix
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| 13. | Let
 ?
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| 14. | Does the product  exist?
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| 15. | Let
 ?
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| 16. | Rewrite the following system in the matrix form.
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?
?
?
-axis?
if a positional vector 
is parallel to 
?
?
