For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t2 - 1)i + ( 2t - 6)j + 9k
A. a = 
T + 
N
B. a = 
T + 
N
C. a = 
T + 
N
D. a = 
T + 
N
Answer: B
Mathematics
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A. - 
j + 
k
B. 
j - 
k
C. 
j + 
k
D. 
j + 
k
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A. 
B. 
C. 
D. 
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A. 6 - 7i B. - 6 - 7i C. 6 + 7i D. - 6 + 7i
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Provide an appropriate response.For the matrix 
write the minor of the element in the second row, third column. (Do not evaluate.)
A.
det 
B.
det 
C.
det 
D.
det 
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