Find projv u.v = 2i - 2j - 4k, u = 12i - 5k
A. 
i - 
j - 
k
B. 
i - 
k
C. 
i - 
k
D. 
i - 
j - 
k
Answer: D
Mathematics
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.
?
Find the derivative 
of 
and the point on the graph of 
where the tangent line to the curve is horizontal.
?
A. 
B. 
C. ?
D. ?
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?
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Find the slope of the line. If the slope is undefined, state this.
A. 0
B. Undefined
C. 1
D. 
Mathematics