Find an algebraic expression equivalent to the given expression.cos (arccot u)
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = x2 - 3, y = 2x, x = 0, for x ? 0
A. 
?
B. 18?
C. 45?
D. 
?
Mathematics
Find the domain of f.f(x) = 
A. {x | x ? -4} B. {x | x ? 4} C. {x | x ? 8, x ? -8} D. {x | x ? -8, x ? 8}
Mathematics
Find the required part of the geometric sequence.Find the common ratio for a geometric sequence with the second term -9 and fifth term 243.
A. ±3
B. -3
C. 3
D. - 
Mathematics
Provide an appropriate response.When two linear equations are solved for y and the slopes are different and the y-intercepts are different, the lines 
A. parallel B. intersecting C. identical
Mathematics