Calculate the arc length of the indicated portion of the curve r(t).r(t) = (8cos3 9t)j + (8sin3 9t)k; 
? ? t ? 
?
A. 0
B. 12
C. 24
D. 4
Answer: B
Mathematics
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A. (h, k) = (-5, 4), r = 2
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C. (h, k) = (5, 4), r = 2
D. (h, k) = (5, -4), r = 2
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What will be an ideal response?
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Solve the problem.Given sin 30° = 
, use trigonometric identities to find the exact value of csc 
.
A. 
B. 
C. 3
D. 
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