11.7k views
1 vote
Does the limit exist? If the limit does exists what is the value?Calculus early transcendental functions

Does the limit exist? If the limit does exists what is the value?Calculus early transcendental-example-1

2 Answers

2 votes

Final answer:

To determine if a limit exists, you can evaluate the function at that point or use algebraic methods. If the function approaches a specific value as the input approaches a particular point, then the limit exists and the value of the limit is that specific value.

Step-by-step explanation:

The question asks whether a limit exists and if it does, what its value is. In calculus, limits are used to describe the behavior of functions as they approach a certain point or infinity. To determine if a limit exists, you can evaluate the function at that point or use algebraic methods such as factoring or rationalization. If the function approaches a specific value as the input approaches a particular point, then the limit exists and the value of the limit is that specific value.

For example, if we consider the function f(x) = x^2, we can see that as x approaches 2, the function approaches 4. Therefore, the limit of f(x) as x approaches 2 is 4. On the other hand, if we consider the function g(x) = 1/x, as x approaches 0, the function approaches infinity. So, the limit of g(x) as x approaches 0 is infinity.

User Crackhaus
by
6.2k points
2 votes

given


\lim _(x\to\infty)(x^2+2)/(1-x-3x^2)
\begin{gathered} \lim _(x\to\infty)(x^2+2)/(1-x-3x^2) \\ \lim _(x\to\infty)(1+(2)/(x^2))/((1)/(x^2)-(x)/(x^2)-3) \\ \lim _(x\to\infty)(1+(2)/(x^2))/((1)/(x^2)-(1)/(x)-3) \end{gathered}

let x tends to infinty


\begin{gathered} \lim _(x\to\infty)(1+(2)/(x^2))/((1)/(x^2)-(1)/(x)-3) \\ (1+(2)/(\infty^2))/((1)/(\infty^2)-(1)/(\infty)-3) \end{gathered}

since ,1 divided by infinty is underfined.

limit does not exist.

User Irynabond
by
6.0k points