The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = ln(t3 - 5t2 + 4)i - 
j - 8cos(t)k
A. v(0) = - 
j
B. v(0) = 
i - 
j
C. v(0) = 
j
D. v(0) = 
i - 
j + 8k
Answer: A
Mathematics
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B. 
C. ?
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A. [2, 13]
B. (2, 12)
C. [2, 12]
D. ?
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B. 2?
C. - 
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