Find the torsion of the space curve.r(t) = (t - 7)i + (ln(cos t) - 5)j + 3k, -?/2 < t < ?/2
A. Undefined
B. ? = 0
C. ? = -1
D. ? = 1
Answer: B
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Provide an appropriate response.Find 
by using the Quotient Rule and by using the Power Rule for Negative Integers. Show that your answers are equivalent.
What will be an ideal response?
Provide an appropriate response.Evaluate L = 2C + 1.57(D + d) + 
if C = 28 in., D = 18 in., and d = 8 in. This is the formula that finds the length of a belt that goes around two pulleys.
A. L = 102.86 in. B. L = 64.5 in. C. L = 96.91 in. D. L = 97.71 in.
Solve the problem.Janet drove 268 kilometers and the trip took 4 hours. How fast was Janet traveling?
A. 1072 km/hr
B. 68 km/hr
C. 
km/hr
D. 67 km/hr
Rewrite the expression as a sum, difference, or multiple of logarithms.log x2(5x - 4)5
A. 2 log x + 5 log 5x - 5 log 4 B. 2 log x + 5 log(5x - 4) C. 7 log(6x - 4) D. 2 log x - 5 log(5x - 4)