no 2n? -5 sin( n) d] lim %3D 3. Prove or provide a counterexample for the follow
Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Math 4303 Homework Section 4.1 Convergence
1. Write out the first seven terms of the sequence dn
2n +1
%3D
3n-1
2. Using only Definition 4.1.2 (N-ɛ definition of convergence), prove the following:
k
a] lim
- = 0
kER
4n +1
b] lim
no n+3
= 4
6n? +3n
= 3
no 2n? -5
c] lim
sin( n)
=D0
d] lim
3. Prove or provide a counterexample for the following:
a] If (s,) converges then (s) converges.
b] If (s,) converges then (s,) converges.
c] lim s, = 0 iff lim |s„ =0
4. Suppose that lim s, =0 and suppose that (t, ) is a bounded sequence. Show that lim s,t, = 0
5. Suppose that (x,), (y, ), and (=,) are sequences such that x, Sy, S=, n and lim x, = L = lim =
Show that lim y, = L
6. Suppose that lim s. =s where s > 0. Prove that there exists a natural number N, such that
if n> N, then s, > 0
DFocus
DELL](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc074fc7e-4e48-46f1-bfc4-aee6ba4e6262%2F00ff1683-896b-4f89-b19d-07d8a9b527c1%2Fm30p55b_processed.jpeg&w=3840&q=75)
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Math 4303 Homework Section 4.1 Convergence
1. Write out the first seven terms of the sequence dn
2n +1
%3D
3n-1
2. Using only Definition 4.1.2 (N-ɛ definition of convergence), prove the following:
k
a] lim
- = 0
kER
4n +1
b] lim
no n+3
= 4
6n? +3n
= 3
no 2n? -5
c] lim
sin( n)
=D0
d] lim
3. Prove or provide a counterexample for the following:
a] If (s,) converges then (s) converges.
b] If (s,) converges then (s,) converges.
c] lim s, = 0 iff lim |s„ =0
4. Suppose that lim s, =0 and suppose that (t, ) is a bounded sequence. Show that lim s,t, = 0
5. Suppose that (x,), (y, ), and (=,) are sequences such that x, Sy, S=, n and lim x, = L = lim =
Show that lim y, = L
6. Suppose that lim s. =s where s > 0. Prove that there exists a natural number N, such that
if n> N, then s, > 0
DFocus
DELL
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