Trigonometria
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2024-10-25T10:26:05+03:00
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Tiivistelmä
https://peda.net/id/2c18d1ac92a
2024-10-25T12:16:25+03:00
<img src="https://peda.net/kotka/perusopetus/kotkansaaren-koulu/kt/oppiaineet/matematiikka/jrl/9-luokka/trigonometria/tiivistelm%C3%A4/s:file/photo/75be73b3cfc984e578b8d24bc62cb8e6c56175df/suorakulmainen_k.PNG"/><img src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fluma-lapinamk.github.io%2Fminna-agt%2F_images%2Fskkolmio.jpg&f=1&nofb=1&ipt=8192fc6516cf34779ececfbd6c58469a707e504ec054df06155f238c75c4d337&ipo=images" alt="Suorakulmaiset kolmiot — Algebra, geometria, trigonometria"/><br/>
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Trigonometriset funktiot: <a href="https://www.youtube.com/watch?v=ebfM5cR_LTg&t=130s" rel="nofollow ugc noopener">Matikkamatskut video</a><br/>
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<ul>
<li>Sini vastainen kateetti / hypotenuusa </li>
</ul>
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<ul>
<li>Kosini viereinen kateetti / hyptenuusa</li>
</ul>
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<ul>
<li>Tangentti vastainen kateetti / viereinen kateetti</li>
</ul>
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<table>
<thead>
<tr>
<th>Nimi</th>
<th>Merkintä</th>
<th>Suhde</th>
</tr>
</thead>
<tbody>
<tr>
<td>Sini</td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>sin</mi><mo>⁡</mo><mi>α</mi></math>"--><span class="MJX_Assistive_MathML">sinα</span></span></td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mi>a</mi><mi>c</mi></mfrac></math>"--><span class="math"><span><span class="mrow"><span class="mfrac"><span class="mi">a/c</span></span></span></span></span></span></td>
</tr>
<tr>
<td>Kosini</td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cos</mi><mo>⁡</mo><mi>α</mi></math>"--><span class="math"><span><span class="mrow"><span class="mi">cos</span><span class="mi">α</span></span></span></span></span></td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mi>b</mi><mi>c</mi></mfrac></math>"--><span class="math"><span><span class="mrow"><span class="mfrac"><span class="mi">b/c</span></span></span></span></span></span></td>
</tr>
<tr>
<td>Tangentti</td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tan</mi><mo>⁡</mo><mi>α</mi></math>"--><span class="math"><span><span class="mrow"><span class="mi">tan</span><span class="mi">α</span></span></span></span></span></td>
<td><span class="MathJax"><!--filtered attribute: data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mi>a</mi><mi>b</mi></mfrac></math>"--><span class="math"><span><span class="mrow"><span class="mfrac"><span class="mi">a/</span><span class="mi">b</span></span></span></span></span></span></td>
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</table>
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Pythagoraan lause:<br/>
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a<sup>2 </sup>+b<sup>2</sup>=c<sup>2</sup><br/>
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<ul>
<li>Hypotenuusan ja kateetin laskeminen
<div class="MathJax_Display"><a href="https://youtu.be/x8suPNAwIVc" rel="nofollow ugc noopener">Hypotenuusan laskeminen</a></div>
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</ul>
2024-10-25T10:45:57+03:00