Evaluating Limits Homework: t^2+1

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In summary, to evaluate this limit, we can use the direct substitution method. The limit is equal to the fraction (t+1)^2 divided by (t^2+1), as x approaches 3.
  • #1
gtfitzpatrick
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Homework Statement



[itex]\lim_{x\rightarrow3} \stackrel{(t+1)^2}{(t^2+1)}[/itex]

Homework Equations





The Attempt at a Solution



if the bottom was t^2 - 1 i could factorise and cancel but when its t^2+1 I am not sure how to go...
 
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  • #2
gtfitzpatrick said:

Homework Statement



[itex]\lim_{x\rightarrow3} \stackrel{(t+1)^2}{(t^2+1)}[/itex]

Homework Equations





The Attempt at a Solution



if the bottom was t^2 - 1 i could factorise and cancel but when its t^2+1 I am not sure how to go...
Here's you limit.

Note: for fractions, use \frac{}{}, not \stackrel{}{}

[tex]\lim_{x \to 3} \frac{(t+1)^2}{(t^2+1)}[/tex]

You can evaluate this limit directly.
 
  • #3
oh gosh, i didnt even check that.
that should have been i first move.
thanks mark
 

FAQ: Evaluating Limits Homework: t^2+1

1. What is the purpose of evaluating limits?

Evaluating limits is a fundamental concept in calculus that allows us to determine the behavior of a function as the input approaches a specific value. It helps us understand the overall behavior and characteristics of a function, such as its continuity, differentiability, and concavity.

2. How do you evaluate a limit using the t^2+1 function?

To evaluate a limit using the t^2+1 function, you first substitute the given value for t into the function. Then, you simplify the expression as much as possible. If the result is a finite number, that is the limit. If the result is an indeterminate form, such as 0/0 or ∞/∞, you can use algebraic manipulation or other techniques, such as L'Hopital's rule, to evaluate the limit.

3. What are the different types of limits?

The three types of limits are one-sided limits, two-sided limits, and infinite limits. One-sided limits only consider the behavior of the function as the input approaches the given value from one side. Two-sided limits consider the behavior from both sides of the given value. Infinite limits occur when the function approaches positive or negative infinity as the input approaches a specific value.

4. What are some common errors to avoid when evaluating limits?

Some common errors when evaluating limits include forgetting to check for one-sided limits, not simplifying the expression before evaluating, and applying rules incorrectly, such as using L'Hopital's rule when it does not apply. It is also important to pay attention to the given value and make sure it is a valid input for the function.

5. How can evaluating limits be applied in real life?

Evaluating limits has many real-life applications, such as in physics, engineering, and economics. For example, in physics, limits are used to determine the velocity and acceleration of an object at a specific time. In engineering, limits are used to design structures and determine their stability. In economics, limits are used to analyze production and consumption patterns. Overall, evaluating limits helps us understand the world around us and make informed decisions based on mathematical principles.

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