Factor the binomial completely.x4 - 1
A. (x2 + 1)(x2 + 1)
B. (x2 + 1)(x + 1)(x - 1)
C. (x2 - 1)(x2 - 1)
D. prime
Answer: B
Mathematics
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Integrate the function.
dt
A. - 
+ sin-1 5t + C
B. - 
+ C
C. - 
+ C
D. 
+ C
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Find the area or volume.Find the volume of the solid generated by revolving the region under the curve 
in the first quadrant about the y-axis.
A. 64? B. 8?3 C. 8? D. 4?
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Use the graph to evaluate the limit.
f(x)
A. 1 B. does not exist C. ? D. -1
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Solve the problem.How many 6-letter codes can be formed using the letters A, B, C, D, E, F, G, H, and I. Repeated letters are allowed.
A. 10,077,696 B. 84 C. 60,480 D. 531,441
Mathematics