The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = ln(t3 - 2t2 + 1)i - 
j - 8cos(t)k
A. v(0) = 1i - 
j
B. v(0) = 
j
C. v(0) = - 
j
D. v(0) = 1i - 
j + 8k
Answer: C
Mathematics
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A. 5
B. - 
C. -5
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Find the slope of the line containing the given points. f(8) = 4 and f(17) = -6
A. - 
B. - 
C. 
D. - 
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Determine whether the given expression is a polynomial. If it is, write it in standard form.
+ 
- 18
A. Yes; 5x4 + 5x2 - 18 B. No
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