Chapter 7: Q 68. (page 641)
Prove the root test. You may model your proof on the proof of the ratio test
g
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For each series in Exercises 44–47, do each of the following:
(a) Use the integral test to show that the series converges.
(b) Use the 10th term in the sequence of partial sums to approximate the sum of the series.
(c) Use Theorem 7.31 to find a bound on the tenth remainder .
(d) Use your answers from parts (b) and (c) to find an interval containing the sum of the series.
(e) Find the smallest value of n so that.
Determine whether the series converges or diverges. Give the sum of the convergent series.
True/False:
Determine whether each of the statements that follow is true or false. If a statement is true, explain why. If a statement is false, provide a counterexample.
(a) True or False: If , then converges.
(b) True or False: If converges, then .
(c) True or False: The improper integral converges if and only if the series converges.
(d) True or False: The harmonic series converges.
(e) True or False: If , the series converges.
(f) True or False: If as , then converges.
(g) True or False: If converges, then as .
(h) True or False: If and is the sequence of partial sums for the series, then the sequence of remainders converges to .
What is the contrapositive of the implication “If A, then B"?
Find the contrapositives of the following implications:
If a divides b and b dividesc, then a divides c.
Determine whether the series converges or diverges. Give the sum of the convergent series.
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