The first sentence starting with, "First of all..." is the topic sentence. The second is not because it is adding detail to the sentence given.
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The radius for this equation is 7
Answer: 3944
All you have to do is multiply 58 x 68 to get the answer.
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Answer:
a). converges
b). diverges
c). converges
Step-by-step explanation:
{
} = {
}
Using radio test,
L = 
= 
= 
= 
= |r|
Therefore,
converges in |r| < 1
a). r = 1/5

This sequence is monotonically decreasing and bounded.
0 <
< 1
Hence, {
} converges.
b). r = 1
{
} = { n }
This sequence is monotonically increasing sequence which is not bounded.
Hence, {
} diverges.
c). r = 1/6

This sequence is monotonically decreasing and bounded.
0 <
< 1
Hence, {
} converges.
For |r| < 1, the
converges.