Calculus chain rule clarification












0












$begingroup$


Chain rule clarification:
enter image description here



Please have a look at the picture before continuing to read my query as this picture provides the context. On the fourth line of working (the one before the final simplified answer), could I get some clarification on the use of chain rule here?



Referring to the line above this one, $d/dt(df/dg) x dg/dt = dg/dt x d/dg(df/dg) x dg/dt$ (ignoring the part on the right of the addition). Does this mean $d/dt(df/dg) = dg/dt x d/dg(df/dg)$ since $dg/dt x d/dg = d/dt$ with the $dg$ cancelling out on the LHS. Since I have never come across this in my life, could someone please explain this is some depth if what I wrote here is true. If false could someone give me an explanation of the working. Sorry in advance if my English is not clear as it is not my native language.










share|cite|improve this question











$endgroup$












  • $begingroup$
    Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
    $endgroup$
    – BigbearZzz
    Jan 15 at 21:58










  • $begingroup$
    In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
    $endgroup$
    – amd
    Jan 16 at 0:53










  • $begingroup$
    Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
    $endgroup$
    – amd
    Jan 16 at 0:54










  • $begingroup$
    Yes, you are correct.
    $endgroup$
    – William Elliot
    Jan 16 at 2:45
















0












$begingroup$


Chain rule clarification:
enter image description here



Please have a look at the picture before continuing to read my query as this picture provides the context. On the fourth line of working (the one before the final simplified answer), could I get some clarification on the use of chain rule here?



Referring to the line above this one, $d/dt(df/dg) x dg/dt = dg/dt x d/dg(df/dg) x dg/dt$ (ignoring the part on the right of the addition). Does this mean $d/dt(df/dg) = dg/dt x d/dg(df/dg)$ since $dg/dt x d/dg = d/dt$ with the $dg$ cancelling out on the LHS. Since I have never come across this in my life, could someone please explain this is some depth if what I wrote here is true. If false could someone give me an explanation of the working. Sorry in advance if my English is not clear as it is not my native language.










share|cite|improve this question











$endgroup$












  • $begingroup$
    Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
    $endgroup$
    – BigbearZzz
    Jan 15 at 21:58










  • $begingroup$
    In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
    $endgroup$
    – amd
    Jan 16 at 0:53










  • $begingroup$
    Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
    $endgroup$
    – amd
    Jan 16 at 0:54










  • $begingroup$
    Yes, you are correct.
    $endgroup$
    – William Elliot
    Jan 16 at 2:45














0












0








0





$begingroup$


Chain rule clarification:
enter image description here



Please have a look at the picture before continuing to read my query as this picture provides the context. On the fourth line of working (the one before the final simplified answer), could I get some clarification on the use of chain rule here?



Referring to the line above this one, $d/dt(df/dg) x dg/dt = dg/dt x d/dg(df/dg) x dg/dt$ (ignoring the part on the right of the addition). Does this mean $d/dt(df/dg) = dg/dt x d/dg(df/dg)$ since $dg/dt x d/dg = d/dt$ with the $dg$ cancelling out on the LHS. Since I have never come across this in my life, could someone please explain this is some depth if what I wrote here is true. If false could someone give me an explanation of the working. Sorry in advance if my English is not clear as it is not my native language.










share|cite|improve this question











$endgroup$




Chain rule clarification:
enter image description here



Please have a look at the picture before continuing to read my query as this picture provides the context. On the fourth line of working (the one before the final simplified answer), could I get some clarification on the use of chain rule here?



Referring to the line above this one, $d/dt(df/dg) x dg/dt = dg/dt x d/dg(df/dg) x dg/dt$ (ignoring the part on the right of the addition). Does this mean $d/dt(df/dg) = dg/dt x d/dg(df/dg)$ since $dg/dt x d/dg = d/dt$ with the $dg$ cancelling out on the LHS. Since I have never come across this in my life, could someone please explain this is some depth if what I wrote here is true. If false could someone give me an explanation of the working. Sorry in advance if my English is not clear as it is not my native language.







calculus chain-rule






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Jan 15 at 22:15









tinlyx

95021118




95021118










asked Jan 15 at 21:52









Sho YamadaSho Yamada

1




1












  • $begingroup$
    Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
    $endgroup$
    – BigbearZzz
    Jan 15 at 21:58










  • $begingroup$
    In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
    $endgroup$
    – amd
    Jan 16 at 0:53










  • $begingroup$
    Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
    $endgroup$
    – amd
    Jan 16 at 0:54










  • $begingroup$
    Yes, you are correct.
    $endgroup$
    – William Elliot
    Jan 16 at 2:45


















  • $begingroup$
    Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
    $endgroup$
    – BigbearZzz
    Jan 15 at 21:58










  • $begingroup$
    In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
    $endgroup$
    – amd
    Jan 16 at 0:53










  • $begingroup$
    Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
    $endgroup$
    – amd
    Jan 16 at 0:54










  • $begingroup$
    Yes, you are correct.
    $endgroup$
    – William Elliot
    Jan 16 at 2:45
















$begingroup$
Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
$endgroup$
– BigbearZzz
Jan 15 at 21:58




$begingroup$
Welcome to MSE. Here's a link to a guide on how to typeset a question properly in LaTeX meta.math.stackexchange.com/questions/5020/…. I'd suggest that you take sometime to edit your question to a more readable form.
$endgroup$
– BigbearZzz
Jan 15 at 21:58












$begingroup$
In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
$endgroup$
– amd
Jan 16 at 0:53




$begingroup$
In the future, please take the time to enter important parts of your question as text instead of posting a picture of it. Images are neither searchable nor accessible to screen readers, nor do they show up in question summaries. The previous comment has a link to a quick reference for formatting mathematical expressions in MathJax.
$endgroup$
– amd
Jan 16 at 0:53












$begingroup$
Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
$endgroup$
– amd
Jan 16 at 0:54




$begingroup$
Please, please, please format the expressions in your last paragraph properly. They’re night unreadable. Make it easier for others to help you.
$endgroup$
– amd
Jan 16 at 0:54












$begingroup$
Yes, you are correct.
$endgroup$
– William Elliot
Jan 16 at 2:45




$begingroup$
Yes, you are correct.
$endgroup$
– William Elliot
Jan 16 at 2:45










0






active

oldest

votes











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',
autoActivateHeartbeat: false,
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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3075022%2fcalculus-chain-rule-clarification%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































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.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3075022%2fcalculus-chain-rule-clarification%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Mario Kart Wii

The Binding of Isaac: Rebirth/Afterbirth

What does “Dominus providebit” mean?