Compute r''(t).r(t) = (9 ln(7t))i + (6t3)j
A. r''(t) = 
i + 18tj
B. r''(t) = - 
i + 36tj
C. r''(t)= - 
t-2i + 36tj
D. r''(t) = 
t-2i + 36tj
Answer: B
Mathematics
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