Tell whether the function exhibits damped oscillation. If it does, identify the damping factor and tell whether the damping occurs as x ? ? or as x ? 0.f(x) = 3-x cos 4x
A. Damping factor = 3-x, damping occurs as x ? ?
B. No damping
C. Damping factor = 4, damping occurs as x ? ?
D. Damping factor = 3-x, damping occurs as x ? 0
Answer: A
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A. 
B. 
C. 
D. 
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A. 8i
B. i
C. ±8
D. -8i
Simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive numbers.
A. 
B. 5
C. 25
D. 
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Fill in the blank(s) with the appropriate word(s).