Find the unit vector that has the same direction as the vector v.v = -4i - 3j
A. u = - 
i - 
j
B. u = 
i + 
j
C. u = -20i - 15j
D. u = - 
i - 
j
Answer: A
Mathematics
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A. Function B. Not a function
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, - 
A. 
B. 
C. 
D. 
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Write the rational expression as an equivalent expression with the indicated denominator.
= 
A. 
B. 
C. 
D. 
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