<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>lesson | The Math of Things</title><link>https://2024-mathofthings.netlify.app/category/lesson/</link><atom:link href="https://2024-mathofthings.netlify.app/category/lesson/index.xml" rel="self" type="application/rss+xml"/><description>lesson</description><generator>Wowchemy (https://wowchemy.com)</generator><language>en-us</language><lastBuildDate>Sat, 05 Mar 2022 00:00:00 +0000</lastBuildDate><image><url>https://2024-mathofthings.netlify.app/media/icon_hu0b7a4cb9992c9ac0e91bd28ffd38dd00_9727_512x512_fill_lanczos_center_3.png</url><title>lesson</title><link>https://2024-mathofthings.netlify.app/category/lesson/</link></image><item><title>Calcolo letterale</title><link>https://2024-mathofthings.netlify.app/slides/capitolo5/</link><pubDate>Sat, 05 Mar 2022 00:00:00 +0000</pubDate><guid>https://2024-mathofthings.netlify.app/slides/capitolo5/</guid><description>&lt;section data-background-image="pingpong_bkg.jpg" data-background-opacity="0.5">
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&lt;h2 style="color:#3B2F2F" class="r-fit-text">CALCOLO &lt;br> LETTERALE&lt;/h2>
&lt;!-- &lt;h3 style="color:#3B2F2F">&lt;em> - Rif.: Capitolo 5 -&lt;/em>&lt;/h3> -->
&lt;h5 style="color:#8A4117">&lt;em>prof. diego fantinelli&lt;/em>&lt;/h5>
&lt;p style="color:#8A4117">&lt;em>matematica per il biennio &amp;mdash; classi prime&lt;/em>&lt;/p>
&lt;h3 style="color:#8A4117; font-size:40pt">IIS "G.A. Remondini - Bassano del Grappa"&lt;/h3>
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&lt;h2 style="color:#3B2F2F">Prerequisiti&lt;/h2>
&lt;ul class="fragment">
&lt;li class="fragment">&lt;h3 style="color:#8A4117">insiemi numerici:&lt;/h3>&lt;/li>
&lt;ul class="fragment">
&lt;li>Operazioni e nomenclatura insiemistiche&lt;/li>
&lt;li>Operazioni in $\mathbb{N}, \mathbb{Z}, \mathbb{Q}, \mathbb{R}$&lt;/li>
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&lt;li class="fragment">&lt;h3 style="color:#8A4117">teoria degli insiemi&lt;/h3>&lt;/li>
&lt;ul class="fragment">
&lt;li>Rappresentazioni: estensiva, intensiva e Diagrammi di Eulero-Venn&lt;/li>
&lt;li>Prodotto Cartesiano: definizione e rappresentazione&lt;/li>
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&lt;h3 class="fragment" style="color:#93C5FD; font-size: 60px;">una riflessione per iniziare...&lt;/h3>
&lt;h3 class="fragment" style="color:#FFFFFF; font-size: 40px;">&lt;em>“I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.”
&lt;br>&amp;mdash; Albert Einstein&lt;/em>&lt;/h3>
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&lt;h2 style="color:#FFFFFF;" class="r-fit-text">Il Calcolo&lt;/h2>
&lt;h2 style="color:#FFFFFF;" class="r-fit-text">Letterale&lt;/h2>
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&lt;h3 class="fragment" style="color:#8A4117; font-size: 60px;">esercizio n.147 a pag 247&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$2 a(a-2 b)+a b(3 a+1)-3 a^2(b-1)-a(2 a-3 b)$$&lt;/h2>
&lt;h3 class="fragment" style="color:#000; font-size: 30px;">si eseguono le moltiplicazioni &lt;i>termine a termine&lt;/i> ottenendo:&lt;h3>
&lt;h2 class="fragment r-fit-text" style="color:#8A4117; font-size: 50px;">$$2a^2 - 4ab + 3a^2 b+ ab -3a^2 b + 3a^2 - 2a^2 + 3ab$$&lt;/h2>
&lt;h3 class="fragment" style="color:#000; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#B91C1C; font-size: 50px;">$$ + 3a^2$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#8A4117; font-size: 60px;">esercizio n.147 a pag 247&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$2 a(a-2 b)+a b(3 a+1)-3 a^2(b-1)-a(2 a-3 b)$$&lt;/h2>
&lt;h3 class="fragment" style="color:#000; font-size: 30px;">si eseguono le moltiplicazioni &lt;i>termine a termine&lt;/i> ottenendo:&lt;h3>
&lt;h2 class="fragment r-fit-text" style="color:#8A4117; font-size: 50px;">$$2a^2 - 4ab + 3a^2 b+ ab -3a^2 b + 3a^2 - 2a^2 + 3ab$$&lt;/h2>
&lt;h3 class="fragment" style="color:#000; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#B91C1C; font-size: 50px;">$$ + 3a^2$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 60px;">esercizio n.149 a pag 247&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$2 a b\left(a^2-b^2\right)-2 a b\left(b^2-a^2\right)+b^2\left(a b-a^2\right)+a^2\left(b^2-a b\right)$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 34px;">si eseguono le moltiplicazioni &lt;i>termine a termine&lt;/i> ottenendo:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$2a^3b - 2ab^3 - 2ab^3 + 2a^3b + ab^3 - a^2b^2 + a^2b^2 - a^3b$$&lt;/h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 50px;">$$3 a^3 b-3 a b^3$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 50px;">esercizio n.173 a pag 249&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$x(x+1)(x+2)+(x-1)(x-2)$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 34px;">si esegue una prima serie di moltiplicazioni &lt;i>termine a termine&lt;/i> ottenendo:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$(x^2+x)(x+2)+x^2-x -2x+2$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 34px;">completiamo con le moltiplicazioni tra i due polinomi $(x^2+x)(x+2)$ ottenendo:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$x^3+x^2 +2x^2+2x +x^2-x -2x+2$$&lt;/h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$x^3+4 x^2-x+2$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 60px;">esercizio n.176 a pag 249&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 26px;">$$\left(4 a+2 b^2+a\right)-\left(\frac{1}{2} a+b\right)(-2 a+1)+3(b+2)(-a)-b(2 b-1-a)$$&lt;h2>
&lt;h5 class="fragment" style="color:#005; font-size: 30px;">facendo &lt;b>molta attenzione&lt;/b> possiamo svolgere tutte le moltiplicazioni e togliere anche le parentesi non necessarie:&lt;/h5>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 30px;">$$4 a+2 b^2+a + a^2 +2ab - \dfrac{1}{2}a - b - 3ab -6a - 2b^2 + b + ab$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">ora possiamo completare semplificando i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 50px;">$$a^2 + \frac{3}{2}a$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 50px;">esercizio n.182 a pag 250&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$x\left[2 y-\left(-x^2+x y-3\right) y-x^2 y+x\left(y^2-x\right)\right]+x^3$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;"> dobbiamo seguire le priorità dettate dalle parentesi, quindi iniziamo dalle tonde:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 34px;">$$x\left[2 y +x^2y - xy^2 + 3y -x^2 y + xy^2-x^2\right]+x^3$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">a questo punto possiamo semplificare eventuali termini simili all'interno delle parentesi quadrate:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$x\left[5y - x^2\right]+x^3$$&lt;/h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">ora possiamo eseguire l'ultima moltiplicazione, ottenendo:&lt;/b>&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 40px;">$$5xy - x^3 + x^3 = 5xy$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 60px;">esercizio n.183 a pag 250&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 32px;">$$y(3-x y)(3+x)-y\left(9-x^2 y\right)+x(3 y-2)\left(y-\frac{1}{3}\right)$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 34px;">si esegue una prima serie di moltiplicazioni &lt;i>termine a termine&lt;/i> ottenendo:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 30px;">$$9y - 3xy^2 + 3xy - x^2y^2 - 9y +x^2y^2 + 3xy^2 - 2xy - xy + \dfrac{2}{3}x$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b>...&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 50px;">$$\dfrac{2}{3}x^2$$&lt;/h2>
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&lt;h3 class="fragment" style="color:#005; font-size: 60px;">esercizio n.186 a pag 250&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 30px;">$$\left(a-b^3\right)\left(a+b^3\right)-b^4\left(a-b^2\right)-(1-b) a^2-\left(-\frac{1}{2} a\right)^2 b+a(-b)^4$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 34px;">eseguiamo tutte le moltiplicazioni che riusciamo, ottenendo:&lt;h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 34px;">$$a^2 - ab^3 + ab^3 - b^6 - ab^4 + b^6 - a^2 + a^2b - \dfrac{1}{4}a^2b + ab^4$$&lt;h2>
&lt;h3 class="fragment" style="color:#005; font-size: 30px;">dopo aver dovutamente semplificato i &lt;b>monomi simili&lt;/b> otteniamo:&lt;/h3>
&lt;h2 class="fragment" style="color:#8A4117; font-size: 50px;">$$\dfrac{3}{4}a^2b$$&lt;/h2>
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&lt;h2 style="color:#ffffff" class="r-fit-text">DOMANDE?&lt;/h2>
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