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      <title>Ricostruire la parabola  by Noemi Carcione</title>
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      <language>en-us</language>
      <pubDate>2018-01-21 23:00:21 UTC</pubDate>
      <lastBuildDate>2023-05-28 01:47:05 UTC</lastBuildDate>
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         <title>APOLLONIO</title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223161956</link>
         <description><![CDATA[<div>APOLLONIO fu il primo ad occuparsi di studiare e classificare  le coniche. <br>Egli notò che il cono poteva essere tagliato in quattro modi diversi,ottenendo così quattro figure geometriche : <br>CERCHIO , ELLISSE, PARABOLA E IPERBOLE</div>]]></description>
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         <pubDate>2018-01-21 23:02:19 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223163446</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-01-21 23:23:19 UTC</pubDate>
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         <title>DANDELIN</title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223165144</link>
         <description><![CDATA[<div>DANDELIN fu il continuatore degli studi sulle coniche di Apollonio ed elaborò i luoghi geometrici <br>nel 1700 elaborò un teorema con cui collegava le coniche di Apollonio con un sistema di sfere. <br>Un luogo geometrico è l’insieme di tutti e solo i punti di uno spazio che godono di una certa proprietá. <br>Le <strong>coniche </strong>possono essere definite come <strong>luoghi geometrici <br></strong><br></div>]]></description>
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         <pubDate>2018-01-21 23:47:36 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223165827</link>
         <description><![CDATA[<div>In particolare, la <strong><em>parabola </em></strong>è il luogo geometrico di tutti e solo i punti del piano equidistanti da un punto fisso,un fuoco ed una retta direttrice.</div>]]></description>
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         <pubDate>2018-01-21 23:57:09 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
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         <pubDate>2018-01-21 23:59:15 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
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         <pubDate>2018-01-22 00:06:41 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
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         <pubDate>2018-01-22 00:12:44 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223168049</link>
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         <pubDate>2018-01-22 00:22:26 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
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         <description><![CDATA[]]></description>
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         <pubDate>2018-01-22 00:23:18 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223168222</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-01-22 00:24:34 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223168758</link>
         <description><![CDATA[<div>solo un particolare tipo di PARABOLA è l'unica tra le coniche ad essere una funzione, cioè quella che ha la direttrice parallela all'asse delle X e l'asse di simmetria parallela all ' asse delle Y , e si rappresenta con una funzione di 2° grado : <br>Y= ax<sup>2 </sup>+ bx + c </div>]]></description>
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         <pubDate>2018-01-22 00:29:53 UTC</pubDate>
         <guid>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223168758</guid>
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      <item>
         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223170898</link>
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         <pubDate>2018-01-22 00:44:33 UTC</pubDate>
         <guid>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223170898</guid>
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      <item>
         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223170970</link>
         <description><![CDATA[<div>Tramite i coefficienti A e C Posso già immaginare la parabola:<br>1.A&nbsp; ci informa sulla concavità della parabola, se è positivo andrà verso l'alto e se invece è negativo andrà verso il basso<br>2. C ci dice il punto d'intersezione della parallela con l'asse delle Y</div>]]></description>
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         <pubDate>2018-01-22 00:45:08 UTC</pubDate>
         <guid>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/223170970</guid>
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      <item>
         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/224867281</link>
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         <pubDate>2018-01-25 20:37:27 UTC</pubDate>
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      <item>
         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/224870173</link>
         <description><![CDATA[<div>Per risolvere l’equazione di secondo grado utilizziamo la&nbsp; formula &nbsp;</div>]]></description>
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         <pubDate>2018-01-25 20:45:48 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/224883380</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-01-25 21:28:27 UTC</pubDate>
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         <title></title>
         <author>noemicarcione1</author>
         <link>https://padlet.com/noemicarcione1/w55y7eeqkmko/wish/224883597</link>
         <description><![CDATA[<div>il discriminante <strong>Δ (b</strong><strong><sup>2 </sup></strong><strong>- 4ac ) </strong>ci dice quanti punti d’intersezione avrà la parabola con l’asse delle X: <br>Se <strong>Δ </strong>è positivo o &gt; 0<br>&nbsp;L’ equazione ha due soluzioni , così la parabola ha due punti d’intersezione con l’asse delle X <br>Se <strong>Δ </strong>è negativo o &lt; 0<br>L’ equazione non ha soluzione perché rappresenterà numeri non Razionali e complessi, e la parabola ha 0 punti d’intersezione <br>Se <strong>Δ = 0 <br></strong>L ‘ equazione ha due soluzioni uguali ,e quindi la parabola ha un solo punto d’intersezione con l’asse delle X&nbsp;</div>]]></description>
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         <pubDate>2018-01-25 21:29:10 UTC</pubDate>
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