Find the radius of convergence and the interval of convergence of the power series.
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Mathematics
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Use De Moivre's theorem to simplify the expression. Write the answer in a + bi form.(-
+ i)6
A. 64i
B. -64
+ 64i
C. -64
D. 64 - 64i
Mathematics
Find the value of the logarithmic function.log7 
A. -3 B. -49 C. 3 D. 49
Mathematics
Find the domain of the function.f(x) = 5ln | x + 3 |
A. (-?, 3) ? (3, ?) B. (-3, ?) C. (-?, -3) ? (-3, ?) D. (-?, -15) ? (-15, ?)
Mathematics
Find the indicated function.The weekly revenue and cost functions for a manufacturer of coats are 
and 
where x denotes the number of coats produced. What is the weekly profit function?
A. P(x) = -0.0015x2 + 12.2x - 28,000 B. P(x) = -0.0015x2 + 9.8x - 28,000 C. P(x) = -0.0015x2 + 12.2x + 28,000 D. P(x) = -0.0015x2 + 9.8x + 28,000
Mathematics