Rationalize the denominator and simplify. Assume that variables represent positive values.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x - ex cos y)i + (x + ex sin y)j; C is the lobe of the lemniscate r2 = sin 2? that lies in the first quadrant.
A. 
B. 1
C. 0
D. 
Mathematics
Prove that the equation is an identity.sec3 x cos x - 1 = tan2x
What will be an ideal response?
Mathematics
Solve the problem.A wheel with radius 3 m rolls at 20 rad/s. How fast is a point on the rim of the wheel rising when the point is 
radians above the horizontal (and rising)? (Round your answer to one decimal place.)
A. 15.0 m/s B. 30.0 m/s C. 60.0 m/s D. 120.0 m/s
Mathematics
Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. 
B. -6
C. 
D. Diverges
Mathematics