Find the value for the function.Find f(2x) when f(x) = 
.
A. 
B. 2
C. 
D. 
Answer: D
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 2tan 
, x = 0, y = - 
A. 6? - 
?2
B. 12 - 3?
C. 3? + 3?2
D. 12? - 3?2
Find the principal unit normal vector N for the curve r(t).r(t) = (2 + t)i + (3 + ln(cos t))k, -?/2 < t < ?/2
A. N = (-cos t)i - (ln(cos t))k B. N = (cos t)i + (sin t)k C. N = (-sin t)i - (cos t)k D. N = (-cos t)i - (tan t)k
Solve the problem.A cylindrical water storage tank has a diameter of 6 meters and a height of 11 meters. Find the capacity of this tank rounded to the nearest hundredth when necessary. Use ? ? 3.14.
A. 13,677.84 m3 B. 1243.44 m3 C. 396 m3 D. 310.86 m3
Perform the indicated operation by hand.17.1 - 3.4
A. 20.5 B. 13.8 C. 13.7 D. -13.7