Establish the identity.
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What will be an ideal response?
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Mathematics
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Find the curvature ? for the given function.r(t) = (3t sin t + 3 cos t)i + 3j + (3t cos t - 3 sin t)k
A. ? = 3t
B. ? = - 
C. ? = 
D. ? = 
Mathematics
Find the surface area of the surface S.S is the portion of the surface 
that lies above the rectangle 
and 
in the x-y plane
A. 32[40 + ln 9]
B. 
[40 + ln 9]
C. 
[40 + ln 9]
D. 
[40 + ln 9]
Mathematics
Express the solution set of the inequality in interval notation and graph the interval.x ? 4
A. (4, ?)
B. (-?, 4)
C. [4, ?)
D. (-?, 4]
Mathematics
Add or subtract as indicated.-5 + 8 - 7
A. 10 B. 4 C. -4 D. -6
Mathematics