Find the torsion of the space curve.r(t) = (9t sin t + 9 cos t)i + (9t cos t) - 9 sin t)j - 9k
A. ? = 1
B. ? = 0
C. Undefined
D. ? = -1
Answer: B
Mathematics
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Evaluate.log66
A. x = 6
B. x = 1
C. x = 
D. x = 0
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Find the eccentricity e of the ellipse.x2 + 2y2 = 6
A. 
B. 
C. 
D. 
Mathematics
Simplify. (Assume all variables are nonzero.)
2
A. 
B. 
C. 
D. 
Mathematics
Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the circumference.
A. 31.4 cm B. 6.4 cm C. 78.5 cm D. 15.7 cm
Mathematics