For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 4)i + (ln(sec t) - 6)j + 5k, -?/2 < t < ?/2
A. a = (csc t)T + (sec t)N
B. a = (cos t)T + (cos t)N
C. a = (sec t tan t)T + (sec t)N
D. a = (sec2 t)T + (cos t)N
Answer: C
Mathematics
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?
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?
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?
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?
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