Multiplying Integrals with Different Bounds











up vote
0
down vote

favorite












The question I have is two integrals mutliplied with different bounds




$$alpha_0(x)=int_x^1expleft(frac{-varphilambda^2}2right)dlambdacdotleft(int_0^1expleft(frac{-varphilambda^2}2right)dlambdaright)$$




What I would like to do is differentiate this with respect to $x$, but am not sure how to do so considering that I have the two integrals multiplied by eachother.



What is f '(alpha0(x))



I understand that the problem would be simple if they were added/subtracted.



I understand from the Fundamental Law of Calculus that the $x$ will replace the $lambda$ when I differentiate a single integral, just not sure how to approach with the double integral.



I know that an analytical solution is definitely possible.



Thank you.










share|cite|improve this question




















  • 1




    See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
    – rafa11111
    Nov 17 at 14:05






  • 1




    Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
    – Ethan Bolker
    Nov 17 at 16:27















up vote
0
down vote

favorite












The question I have is two integrals mutliplied with different bounds




$$alpha_0(x)=int_x^1expleft(frac{-varphilambda^2}2right)dlambdacdotleft(int_0^1expleft(frac{-varphilambda^2}2right)dlambdaright)$$




What I would like to do is differentiate this with respect to $x$, but am not sure how to do so considering that I have the two integrals multiplied by eachother.



What is f '(alpha0(x))



I understand that the problem would be simple if they were added/subtracted.



I understand from the Fundamental Law of Calculus that the $x$ will replace the $lambda$ when I differentiate a single integral, just not sure how to approach with the double integral.



I know that an analytical solution is definitely possible.



Thank you.










share|cite|improve this question




















  • 1




    See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
    – rafa11111
    Nov 17 at 14:05






  • 1




    Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
    – Ethan Bolker
    Nov 17 at 16:27













up vote
0
down vote

favorite









up vote
0
down vote

favorite











The question I have is two integrals mutliplied with different bounds




$$alpha_0(x)=int_x^1expleft(frac{-varphilambda^2}2right)dlambdacdotleft(int_0^1expleft(frac{-varphilambda^2}2right)dlambdaright)$$




What I would like to do is differentiate this with respect to $x$, but am not sure how to do so considering that I have the two integrals multiplied by eachother.



What is f '(alpha0(x))



I understand that the problem would be simple if they were added/subtracted.



I understand from the Fundamental Law of Calculus that the $x$ will replace the $lambda$ when I differentiate a single integral, just not sure how to approach with the double integral.



I know that an analytical solution is definitely possible.



Thank you.










share|cite|improve this question















The question I have is two integrals mutliplied with different bounds




$$alpha_0(x)=int_x^1expleft(frac{-varphilambda^2}2right)dlambdacdotleft(int_0^1expleft(frac{-varphilambda^2}2right)dlambdaright)$$




What I would like to do is differentiate this with respect to $x$, but am not sure how to do so considering that I have the two integrals multiplied by eachother.



What is f '(alpha0(x))



I understand that the problem would be simple if they were added/subtracted.



I understand from the Fundamental Law of Calculus that the $x$ will replace the $lambda$ when I differentiate a single integral, just not sure how to approach with the double integral.



I know that an analytical solution is definitely possible.



Thank you.







calculus integration differential-equations derivatives






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Nov 17 at 16:22

























asked Nov 17 at 14:00









Emma Houchell

61




61








  • 1




    See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
    – rafa11111
    Nov 17 at 14:05






  • 1




    Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
    – Ethan Bolker
    Nov 17 at 16:27














  • 1




    See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
    – rafa11111
    Nov 17 at 14:05






  • 1




    Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
    – Ethan Bolker
    Nov 17 at 16:27








1




1




See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
– rafa11111
Nov 17 at 14:05




See that the term in brackets is a constant, since the bounds of integration are constant. You need only to differentiate the leftmost integral.
– rafa11111
Nov 17 at 14:05




1




1




Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
– Ethan Bolker
Nov 17 at 16:27




Just one of the integrals depends on $x$. The other one is a constant. So proceed with the Fundamental Theorem of Calculus; be sure to account for the fact that the variable is the lower limit of integration. (I have just reprased @rafa11111 's comment, which you seem to have ignored.)
– Ethan Bolker
Nov 17 at 16:27















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',
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%2f3002391%2fmultiplying-integrals-with-different-bounds%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown






























active

oldest

votes













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.





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.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3002391%2fmultiplying-integrals-with-different-bounds%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

How to change which sound is reproduced for terminal bell?

Can I use Tabulator js library in my java Spring + Thymeleaf project?

Title Spacing in Bjornstrup Chapter, Removing Chapter Number From Contents