Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (6 sin 2t)i + (6 cos 2t)j + e3tk, 0 ? t ? 1; 
A. Iz = 4(e6 - 1)
B. Iz = 
C. Iz = 
D. Iz = 
[(144 + 9e6)3/2 - (144 + 9)3/2 ]
Answer: D
Mathematics
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