Can anyone tell me if my choice is right? This is my last attempt











up vote
0
down vote

favorite












I choose c



because the left most rectangle is $f(-x) = -1$
height is still $1$
height of 2nd rectangle $f(-pi/2)=0$
height of 3rd rectangle $f(0)=0$
right most rectangle $f(pi/2)=0$






calculus







share|cite|improve this question
























  • So which graph do you suppose to be the correct one?
    – Andreas
    yesterday










  • @Andreas C looks correct to me but I am not sure
    – Amy Jones
    yesterday










  • @Andreas I know b is wrong
    – Amy Jones
    yesterday






  • 1




    Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
    – Andreas
    yesterday















up vote
0
down vote

favorite












I choose c



because the left most rectangle is $f(-x) = -1$
height is still $1$
height of 2nd rectangle $f(-pi/2)=0$
height of 3rd rectangle $f(0)=0$
right most rectangle $f(pi/2)=0$






calculus







share|cite|improve this question
























  • So which graph do you suppose to be the correct one?
    – Andreas
    yesterday










  • @Andreas C looks correct to me but I am not sure
    – Amy Jones
    yesterday










  • @Andreas I know b is wrong
    – Amy Jones
    yesterday






  • 1




    Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
    – Andreas
    yesterday













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I choose c



because the left most rectangle is $f(-x) = -1$
height is still $1$
height of 2nd rectangle $f(-pi/2)=0$
height of 3rd rectangle $f(0)=0$
right most rectangle $f(pi/2)=0$






calculus







share|cite|improve this question















I choose c



because the left most rectangle is $f(-x) = -1$
height is still $1$
height of 2nd rectangle $f(-pi/2)=0$
height of 3rd rectangle $f(0)=0$
right most rectangle $f(pi/2)=0$






calculus




calculus






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited yesterday









user376343

2,1441716




2,1441716










asked yesterday









Amy Jones

257




257












  • So which graph do you suppose to be the correct one?
    – Andreas
    yesterday










  • @Andreas C looks correct to me but I am not sure
    – Amy Jones
    yesterday










  • @Andreas I know b is wrong
    – Amy Jones
    yesterday






  • 1




    Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
    – Andreas
    yesterday


















  • So which graph do you suppose to be the correct one?
    – Andreas
    yesterday










  • @Andreas C looks correct to me but I am not sure
    – Amy Jones
    yesterday










  • @Andreas I know b is wrong
    – Amy Jones
    yesterday






  • 1




    Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
    – Andreas
    yesterday
















So which graph do you suppose to be the correct one?
– Andreas
yesterday




So which graph do you suppose to be the correct one?
– Andreas
yesterday












@Andreas C looks correct to me but I am not sure
– Amy Jones
yesterday




@Andreas C looks correct to me but I am not sure
– Amy Jones
yesterday












@Andreas I know b is wrong
– Amy Jones
yesterday




@Andreas I know b is wrong
– Amy Jones
yesterday




1




1




Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
– Andreas
yesterday




Well, it says "$c_k$ is the left endpoint" so indeed C looks fine.
– Andreas
yesterday















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%2f2999375%2fcan-anyone-tell-me-if-my-choice-is-right-this-is-my-last-attempt%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



















































 


draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2999375%2fcan-anyone-tell-me-if-my-choice-is-right-this-is-my-last-attempt%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

Ellipse (mathématiques)

Image
Pour les articles homonymes, voir Ellipse. L'ellipse est le lieu des points dont la somme des distances à deux points fixes, dits foyers, est constante. Section du cône ou projection du cercle. En géométrie, une ellipse est une courbe plane fermée obtenue par l’intersection d’un cône de révolution avec un plan, à condition que celui-ci coupe l'axe de rotation du cône ou du cylindre : c'est une conique d'excentricité strictement comprise entre 0 et 1. On peut également la définir comme le lieu des points dont la somme des distances à deux points fixes, dits foyers, est constante (sa construction par la méthode du jardinier est très simple). Dans la vie courante, l’ellipse est la forme qu'on perçoit en regardant un cercle en perspective, ou la figure formée par l’ombre d'un disque sur une surface plane. On retrouve aussi, en première approximation [ 1 ] , des ellipses dans les trajectoires des corps célestes (planètes, comètes ou satellites arti...
Read more

Quarter-circle Tiles

Image
up vote 0 down vote favorite I have $99$ identical square tiles, each with a quarter-circle drawn on it like this: [asy] size(1.5cm); draw(Arc((2,0),1,90,180),red+1); draw((0,0)--(2,0)--(2,2)--(0,2)--(0,0)); [/asy] When I arrange the tiles in a $9times 11$ rectangular grid, each with a random orientation, what is the expected value of the number of full circles I form? I think this problem has to do with finding the chance any given 2x2 square has a circle, but I can't find it. expected-value share | cite | improve this question asked Nov 20 at 15:03 6minecraftninja 1 2 ...
Read more

Mont Emei

Image
Mont Emei.mw-parser-output .entete.map{background-image:url("//upload.wikimedia.org/wikipedia/commons/7/7a/Picto_infobox_map.png")} Vue du sommet Wanfo du mont Emei Géographie Altitude 3 099  m , Wanfo Coordonnées 29° 31′ 11″ nord, 103° 19′ 57″ est Administration Pays   Chine Province Sichuan Ville-préfecture Leshan Géolocalisation sur la carte : Sichuan Mont Emei Géolocalisation sur la carte : Chine Mont Emei modifier   Paysage panoramique du mont Emei, incluant le paysage panoramique du grand Bouddha de Leshan *   Patrimoine mondial de l'UNESCO Passerelle en bois sur le versant ouest Pays   Chine Subdivision Sichuan Type Mixte Critères (iv) (vi) (x) Superficie 15 400 ha Numéro d’identification 779 Zone géographique Asie et Pacifique  ** Année d’inscription 1996 (20 e session) * Descriptif officiel UNESCO ** Classification géog...
Read more