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. -3 < x < -1
B. 1 ? x ? 3
C. -3 ? x ? -1
D. All x
Answer: C
Mathematics
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Which of the following is not equivalent to the following function: f(x) = 4(x + 2)? ?
A. ?f(x) = 4x + 2 B. ?four times the quantity of the sum of a number and 2 equals some function value. C. ?four times a quantity of a number increased by 2 is equal to a function value. D. ?f(x) is equal to four times the sum of a number and 2. E. ?none of the above.
Mathematics
Complete the identity.
= ?
A. 1 + cot ? cot ? B. 1 + cot ? tan ? C. 1 + tan ? tan ? D. tan ? tan ? + cot ?
Mathematics
Verify the identity.
- 
= cos ? - sin ?
What will be an ideal response?
Mathematics
Write the converse, inverse, and contrapositive of “If Ann is Jan’s mother, then Jose is Jan’s cousin.”
What will be an ideal response?
Mathematics