Divide and, if possible, simplify. Assume all variables represent positive real numbers.
A. 2 
B. 10 
C. 2x 
D. 6 
Answer: A
Mathematics
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Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = x5 - x3 + x2 + 5
A. 
B. 
C. 
D. 
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (sin x)cos x
A. (sin x)cos x(cos x cot x - sin x ln (sin x)) B. cos x ln ( sin x) C. cos x cot x - ln (sin x) D. cos x cot x - sin x ln(sin x)
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Use l'Hopital's Rule to evaluate the limit.
A. -1
B. 1
C. 0
D. 
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Find the common ratio, r, for the geometric sequence.2, 6, 18, 54, 162, . . .
A. 1/3 B. 6 C. 81 D. 3
Mathematics