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      <title>Definite Integral Discussion by </title>
      <link>https://padlet.com/kmbeal/upqoa6tah5e7</link>
      <description>Post a screenshot of a function and discuss the steps to solving a definite integral over three different intervals. Discuss and critique on other classmate&#39;s posts.</description>
      <language>en-us</language>
      <pubDate>2019-10-19 21:27:46 UTC</pubDate>
      <lastBuildDate>2023-05-09 11:59:24 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <url></url>
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      <item>
         <title>Example 1: y=sin(x)</title>
         <author>kmbeal</author>
         <link>https://padlet.com/kmbeal/upqoa6tah5e7/wish/399894521</link>
         <description><![CDATA[<div>Start by finding the anti-derivative. In this case it is -cos(x)<br>Then we integrate over our chosen interval: Let's do 0&lt;=x&lt;=pi, 0&lt;=x&lt;=2pi, and pi&lt;=x&lt;=2pi<br><br>Geometric approximation<br>Interval one:<br>1/2*3.14*1=1.57<br>Interval two:<br>1/2*3.14*1-1/2*3.14*1=0<br>Interval three:<br>1/2*3.14*(-1)=-1.57<br><br>Integrating for our first interval we get -cos(pi)-(-cos(0))=1+1=2<br>Second interval:<br>-cos(2pi)-(-cos(0))=-1+1=0<br>Third interval:<br>-cos(2pi)-(-cos(pi))=-1-1=-2</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/421387404/d624f222330a7c10811246e2b727995c/Sin_x_.png" />
         <pubDate>2019-10-19 21:37:02 UTC</pubDate>
         <guid>https://padlet.com/kmbeal/upqoa6tah5e7/wish/399894521</guid>
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      <item>
         <title>Example 2: y=x^2 (Find the mistake!)</title>
         <author>kmbeal</author>
         <link>https://padlet.com/kmbeal/upqoa6tah5e7/wish/399895341</link>
         <description><![CDATA[<div>Start by finding the anti-derivative. In this case it is (1/3)x^3<br>Then we integrate over our chosen intervals: Let's do 0&lt;=x&lt;=2, 2&lt;=x&lt;=5, -2&lt;=x&lt;=2<br><br>Geometric approximation<br>Interval one:<br>1/2*2*4=4<br>Interval two:<br>3*4+1/2*3*21=43.5<br>Interval three:<br>See that it's the same as our first interval times 2. 2*4=8<br><br>Now calculate the definite integral:<br>First interval:<br>1/3(0^3)-(1/3(2^3))=0-8/3=-8/3<br>Second Interval:<br>1/3(2^3)-(1/3(5^3))=8/3-125/3=-117/3=-39<br>Third Interval:<br>1/3(-2^3)-(1/3(2^3))=-8/3-8/3=-16/3</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/421387404/e89352179411a94d93a6f1a866dff986/y_x_2.png" />
         <pubDate>2019-10-19 21:45:54 UTC</pubDate>
         <guid>https://padlet.com/kmbeal/upqoa6tah5e7/wish/399895341</guid>
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