Find the limit of the sequence if it converges; otherwise indicate divergence.an = 1 + (-1)n + (-1)n(n+1)
A. 0
B. 1
C. 3
D. Diverges
Answer: D
Mathematics
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Find div F.F(x, y, z) = y cos(x)i + x sin(y)j + 8k
A. x cos(y) - y sin(x) + 8 B. x cos(y) - y sin(x) C. x sin(y) - y cos(x) + 8 D. x sin(y) - y cos(x)
Mathematics
Solve the equation in the real number system.x3 + 6x2 - 14x + 16 = 0
A. {-8} B. {-8, 8} C. {1} D. {8}
Mathematics
Solve the problem.The graph on the left shows the population (in millions) of a colony of bacteria after t hours as given by the function f(t). The graph on the right shows f'(t).
After how many hours was the population 9 million?
A. 8 hr B. 7 hr C. 6 hr D. 4 hr
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.- 
x > -20
A. (-?, 32]
B. (-?, 32)
C. [32, ?)
D. (32, ?)
Mathematics