III. Are the following statements true or false? If the statement is false, justify your answer. 1. Let {a„} and {b,} be sequences such that a, < b, for all n, lim a, = a, and lim bn = b. Then a > b. 2. Suppose {a,} and {bn} are sequences with lim an = a and lim (an – bn) = 0. Then, lim b, = a. n + 1 is divergent. Then for any constant e, the series n+ 2 3. The infinite series n+1 n+2 is also divergent. 4. An infinite series of the form (an – bn) is always divergent given that both an and bn are divergent.

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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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III. Are the following statements true or false? If the statement is false, justify your answer.
1. Let {a„} and {bn} be sequences such that an < b, for all n, lim a,
lim bn = b. Then a > b.
а, аnd
n-00
2. Suppose {a,} and {bn} are sequences with_lim a, = a and lim (a, – bn) = 0. Then,
lim b, = a.
n-00
n +1
3. The infinite series
is divergent. Then for any constant c, the series
(n +2
n+1
is also divergent.
n+2
4. An infinite series of the form (an – bn) is always divergent given that both
an
and bn are divergent.
n=1
Transcribed Image Text:III. Are the following statements true or false? If the statement is false, justify your answer. 1. Let {a„} and {bn} be sequences such that an < b, for all n, lim a, lim bn = b. Then a > b. а, аnd n-00 2. Suppose {a,} and {bn} are sequences with_lim a, = a and lim (a, – bn) = 0. Then, lim b, = a. n-00 n +1 3. The infinite series is divergent. Then for any constant c, the series (n +2 n+1 is also divergent. n+2 4. An infinite series of the form (an – bn) is always divergent given that both an and bn are divergent. n=1
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