Problem 1E: (a) What is the difference between a sequence and a series? (b) What is a convergent series? What is... Problem 2E: Explain what it means to say that n=1an=5. Problem 3E: Calculate the first eight terms of the sequence of partial sums correct to four decimal places. Does... Problem 4E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 5E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 6E: Calculate the first eight terms of the sequence of partial sums correct to four decimal places. Does... Problem 7E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 8E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 9E Problem 10E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 11E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 12E: Determine whether the geometric series is convergent or divergent. If it is convergent, find its... Problem 23E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. 27.... Problem 24E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. 28.... Problem 13E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. n=13nen1 Problem 14E: Determine whether the series is convergent or divergent. If it is convergent, find its sum.... Problem 15E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. n=1n13n1 Problem 16E: Determine whether the series is convergent or divergent. If it is convergent, find its sum.... Problem 17E: Determine whether the series is convergent or divergent. If it is convergent, find its sum.... Problem 18E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. n=1cos1n Problem 19E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. n=12n Problem 20E: Determine whether the series is convergent or divergent. If it is convergent, find its sum.... Problem 22E: Determine whether the series is convergent or divergent. If it is convergent, find its sum.... Problem 21E: Determine whether the series is convergent or divergent. If it is convergent, find its sum. 39.... Problem 25E: Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in... Problem 26E: Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in... Problem 27E: Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in... Problem 28E: Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in... Problem 29E: Let X = 0.99999 .... (a) Do you think that x 1 or x = 1? (b) Sum a geometric series to find the... Problem 30E: A sequence of terms is defined by a1, = 1 an,= (5 n)an1 Calculate n=1an Problem 31E Problem 32E: Express the number as a ratio of integers. 52. 0.46=0.46464646... Problem 33E: Express the number as a ratio of integers. 53. 2.516=2.516516516... Problem 34E Problem 35E: Find the values of x for which the series converges. Find the sum of the series for those values of... Problem 37E: Find the values of x for which the series converges. Find the sum of the series for those values of... Problem 36E: Find the values of x for which the series converges. Find the sum of the series for those values of... Problem 38E: We have seen that the harmonic series is a divergent series whose terms approach 0. Show that... Problem 39E: If the nth partial sum of a series n=1an is sn=n1n+1 find an. and n=1an Problem 40E: If the nth partial sum of a series n=1an is sn = 3 - n2n, find an and n=1an . Problem 41E Problem 42E Problem 43E: When money is spent on goods and services, those who receive the money also spend some of it. The... Problem 44E: A certain ball has the property that each time it falls from a height h onto a hard, level surface,... Problem 45E: Find the value of c if n=2(1+c)n=2 Problem 46E: Graph the curves y = xn, 0x1, for n = 0, 1, 2, 3, 4, on a common screen. By finding the areas... Problem 47E: The figure shows two circles C and D of radius 1 that touch at P. T is a common tangent line; C1 is... Problem 48E: A right triangle ABC is given with A = and |AC|=b. CD is drawn perpendicular to AB, DE is drawn... Problem 49E: What is wrong with the following calculation?... Problem 50E: Suppose thatn=1an(an0) is known to be a convergent series. Prove that n=11/an is a divergent series. Problem 51E: Prove part (i) of Theorem 8. Problem 52E: If an is divergent and c 0, show thatan, is divergent. Problem 53E: If an is convergent and bn is divergent, show that the series (an + bn,) is divergent. [Hint: Argue... Problem 54E: If an and bn are both divergent, is (an + bn) necessarily divergent? Problem 55E: Suppose that a series an bas positive terms and its partial sums sn satisfy the inequality sn 1000... Problem 56E: The Fibonacci sequence was defined in Section 8.1 by the equations f1 = 1, f2 = 1, fn = fn1 + fn2 n3... Problem 57E: The Cantor set, named after the German mathematician Georg Cantor (18451918), is constructed as... Problem 58E: (a) A sequence {an} is defined recursively by the equation an=12(an1+an2) for n 3, where a1 and a2... Problem 59E: Consider the series n=1n/(n+1)!. (a) Find the partial sums s1, s2, s3, and s4. Do you recognize the... Problem 60E: In the figure at the right there are infinitely many circles approaching the vertices of an... format_list_bulleted