Find the convergence set for the given power series. Hint: First find a formula for the nth term; then use the Absolute Ratio Test.
- 
+ 
- . . .
A. -1 ? x ? 1
B. -1 ? x < 1
C. -1 < x ? 1
D. All x
Answer: A
Mathematics
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Simplify the expression.ln (x12e-5x)
A. -5x + ln 12 B. 12 ln x - 5x C. 12 - 5x D. 12e-5x
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Subtract and simplify. Write the answer as a mixed number as needed.15 - 
A. 15
B. 14
C. 14
D. 12
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Factor completely. If the polynomial cannot be factored, say it is prime.98x2 - 112x + 32
A. 2(7x - 4)(7x + 4) B. 2(7x - 4)2 C. 2(7x + 4)2 D. prime
Mathematics
Find the exact value of the expression using a sum, difference, or double-angle identity.tan 
A. 2 - 
B. 
- 2
C. -2 - 
D. 2 + 
Mathematics