Evaluating this limit without Taylor $lim_{xtoinfty} frac{x^3sin(x)}{x^2+x+1}$
up vote
-3
down vote
favorite
I need help with this limit, and without using Taylor series
$$lim_{xtoinfty} frac{x^3sin(x)}{x^2+x+1}$$
limits
add a comment |
up vote
-3
down vote
favorite
I need help with this limit, and without using Taylor series
$$lim_{xtoinfty} frac{x^3sin(x)}{x^2+x+1}$$
limits
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36
add a comment |
up vote
-3
down vote
favorite
up vote
-3
down vote
favorite
I need help with this limit, and without using Taylor series
$$lim_{xtoinfty} frac{x^3sin(x)}{x^2+x+1}$$
limits
I need help with this limit, and without using Taylor series
$$lim_{xtoinfty} frac{x^3sin(x)}{x^2+x+1}$$
limits
limits
edited Nov 22 at 22:41
gimusi
91.9k84495
91.9k84495
asked Nov 22 at 22:32
Franco Cabrera
64
64
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36
add a comment |
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
HINT
Let consider
for $x_n=2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to,?$
for $x_n=frac{pi}2+2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to ,?$
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3009760%2fevaluating-this-limit-without-taylor-lim-x-to-infty-fracx3-sinxx2x%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
HINT
Let consider
for $x_n=2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to,?$
for $x_n=frac{pi}2+2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to ,?$
add a comment |
up vote
2
down vote
HINT
Let consider
for $x_n=2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to,?$
for $x_n=frac{pi}2+2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to ,?$
add a comment |
up vote
2
down vote
up vote
2
down vote
HINT
Let consider
for $x_n=2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to,?$
for $x_n=frac{pi}2+2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to ,?$
HINT
Let consider
for $x_n=2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to,?$
for $x_n=frac{pi}2+2pi nto infty implies frac{x_n^3sin x_n}{x_n^2+x_n+1}to ,?$
answered Nov 22 at 22:37
gimusi
91.9k84495
91.9k84495
add a comment |
add a comment |
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3009760%2fevaluating-this-limit-without-taylor-lim-x-to-infty-fracx3-sinxx2x%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Are you looking for that $frac{x^3sin x}{x^2+x+1}$?
– gimusi
Nov 22 at 22:34
If it is $displaystylelim_{xtoinfty}frac{x^3sin x}{x^2+x+1}$, then the limit obviously doesn't exist.
– egreg
Nov 22 at 22:36