Limit of (2.3, 2.33, 2.333, )

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In summary, the limit of the sequence (2.3, 2.33, 2.333, 2.3333, ...) is theoretically 2.333... but it is not the correct answer. To show this, it is necessary to express the repeating decimal as a fraction. If the sequence were (0.3, 0.33, 0.333, 0.3333, ...), the limit would be 0.333... which is equal to 1/3. Therefore, the limit of the original sequence is 2 plus 1/3, or 2.333...
  • #1
PirateFan308
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Homework Statement


Compute the limit of the following sequences (show work):
(2.3, 2.33, 2.333, 2.3333, ...)


The Attempt at a Solution


Theoretically it approaches 2.333... but I don't think this is the correct answer (and I am not sure how to show it). Does the limit not exist?
 
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  • #2
PirateFan308 said:

Homework Statement


Compute the limit of the following sequences (show work):
(2.3, 2.33, 2.333, 2.3333, ...)


The Attempt at a Solution


Theoretically it approaches 2.333... but I don't think this is the correct answer (and I am not sure how to show it). Does the limit not exist?

If the sequence happened to be (0.3, 0.33, 0.333, 0.3333, ...), what would the limit of the sequence be? The limit of your sequence is 2 plus the limit of this sequence.
 
  • #3
Remember that a repeating decimal represents a rational number. You should be able to express it as a fraction.
 
  • #4
Wow, that is so simple. Thank you!
 
  • #5
PirateFan308 said:
Wow, that is so simple. Thank you!

How "simple" it is depends on how detailed the "show your work" is supposed to be.
 

FAQ: Limit of (2.3, 2.33, 2.333, )

What is the limit of the sequence (2.3, 2.33, 2.333, ...)?

The limit of this sequence is 2.333 repeating. This means that as the sequence continues, the numbers get closer and closer to 2.333. However, the sequence will never reach exactly 2.333.

How do you determine the limit of a sequence?

To determine the limit of a sequence, you can look at the pattern of numbers and see what number the sequence is approaching. You can also use mathematical tools, such as the limit definition or the Squeeze Theorem, to find the limit of a sequence.

Is the limit of a sequence always a single number?

No, the limit of a sequence can also be infinite or undefined. For example, the limit of the sequence (1, 2, 3, ...) is infinity, since the numbers in the sequence continue to increase without bound. And the limit of the sequence (1, -1, 1, -1, ...) is undefined, since the numbers in the sequence oscillate between two values.

Can a sequence have multiple limits?

No, a sequence can only have one limit. If a sequence has multiple limits, it is considered divergent and does not have a limit.

How is the limit of a sequence used in science?

The concept of limits is used in many areas of science, such as physics, chemistry, and biology. In physics, limits are used to calculate the instantaneous rate of change and to understand the behavior of particles in motion. In chemistry, limits are used to determine the concentration of a substance in a solution. In biology, limits are used to model population growth and to understand the behavior of complex systems.

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