How to solve a limit in two variables with an indeterminate form at (0,0)?

Thread starter Kenneth1997
Start date Dec 2, 2018
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Limit Variables

In summary, the polar form includes nonlinear paths. If the limit exists and doesn't depend on the value of ##\theta##, then you have a genuine 2D limit. If the limit fails to exist for at least some values of ##\theta##, then your 2D limit does not exist.

Dec 5, 2018

berkeman

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After a Mentor discussion and some thread cleanup, the thread will remain closed. Thanks to everyone who contributed to the thread.

Last edited: Dec 9, 2018

<h2>1. What is an indeterminate form in limits with two variables?</h2><p>An indeterminate form in limits with two variables is a situation where the value of the limit cannot be determined simply by plugging in the values of the variables. It typically occurs when the limit involves a fraction with a numerator and denominator that both approach zero as the variables approach a certain point.</p><h2>2. How do I determine if a limit in two variables has an indeterminate form at (0,0)?</h2><p>To determine if a limit in two variables has an indeterminate form at (0,0), you can try plugging in different values for the variables and see if the limit approaches the same value. If the limit approaches different values, then it is likely an indeterminate form. You can also use algebraic techniques, such as factoring or simplifying, to determine if the limit has an indeterminate form.</p><h2>3. What are some common techniques for solving limits with an indeterminate form at (0,0)?</h2><p>Some common techniques for solving limits with an indeterminate form at (0,0) include using L'Hopital's rule, which involves taking the derivative of the numerator and denominator separately and then evaluating the limit again. Another technique is to use substitution, where you substitute a new variable in place of the original variables and then evaluate the limit as the new variable approaches the point in question.</p><h2>4. Are there any special cases to consider when solving limits with an indeterminate form at (0,0)?</h2><p>Yes, there are a few special cases to consider when solving limits with an indeterminate form at (0,0). One is when the limit involves trigonometric functions, in which case you may need to use trigonometric identities or the squeeze theorem to evaluate the limit. Another special case is when the limit involves a radical, in which case you may need to rationalize the numerator or denominator to simplify the expression.</p><h2>5. Can limits with an indeterminate form at (0,0) have multiple solutions?</h2><p>Yes, limits with an indeterminate form at (0,0) can have multiple solutions. This is because there are different techniques and approaches that can be used to solve these types of limits, and each may yield a different result. It is important to check your work and make sure that your solution is valid for the given limit.</p>

1. What is an indeterminate form in limits with two variables?

An indeterminate form in limits with two variables is a situation where the value of the limit cannot be determined simply by plugging in the values of the variables. It typically occurs when the limit involves a fraction with a numerator and denominator that both approach zero as the variables approach a certain point.

2. How do I determine if a limit in two variables has an indeterminate form at (0,0)?

To determine if a limit in two variables has an indeterminate form at (0,0), you can try plugging in different values for the variables and see if the limit approaches the same value. If the limit approaches different values, then it is likely an indeterminate form. You can also use algebraic techniques, such as factoring or simplifying, to determine if the limit has an indeterminate form.

3. What are some common techniques for solving limits with an indeterminate form at (0,0)?

Some common techniques for solving limits with an indeterminate form at (0,0) include using L'Hopital's rule, which involves taking the derivative of the numerator and denominator separately and then evaluating the limit again. Another technique is to use substitution, where you substitute a new variable in place of the original variables and then evaluate the limit as the new variable approaches the point in question.

4. Are there any special cases to consider when solving limits with an indeterminate form at (0,0)?

Yes, there are a few special cases to consider when solving limits with an indeterminate form at (0,0). One is when the limit involves trigonometric functions, in which case you may need to use trigonometric identities or the squeeze theorem to evaluate the limit. Another special case is when the limit involves a radical, in which case you may need to rationalize the numerator or denominator to simplify the expression.

5. Can limits with an indeterminate form at (0,0) have multiple solutions?

Yes, limits with an indeterminate form at (0,0) can have multiple solutions. This is because there are different techniques and approaches that can be used to solve these types of limits, and each may yield a different result. It is important to check your work and make sure that your solution is valid for the given limit.