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		<id>https://wiki.mattekollen.se/index.php?action=history&amp;feed=atom&amp;title=2.5_L%C3%B6sning_6</id>
		<title>2.5 Lösning 6 - Versionshistorik</title>
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		<updated>2026-11-05T08:48:48Z</updated>
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	<entry>
		<id>https://wiki.mattekollen.se/index.php?title=2.5_L%C3%B6sning_6&amp;diff=16742&amp;oldid=prev</id>
		<title>Taifun den 31 oktober 2014 kl. 11.30</title>
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				<updated>2014-10-31T11:30:25Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny sida&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Att bestämma &amp;lt;math&amp;gt; C \, &amp;lt;/math&amp;gt;:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; \begin{array}{rcl}  f(x) &amp;amp; = &amp;amp; C \cdot e\,^{k\,x}&lt;br /&gt;
        \end{array}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt; \, f(0) = 50 &amp;lt;/math&amp;gt; innebär:	            &lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; \begin{array}{rcrcl}  f(0) &amp;amp; = &amp;amp; C \cdot e\,^{k\,\cdot\, 0} &amp;amp; = &amp;amp; 50  \\&lt;br /&gt;
                                   &amp;amp;   &amp;amp; C \cdot e\,^{0}            &amp;amp; = &amp;amp; 50  \\&lt;br /&gt;
                                   &amp;amp;   &amp;amp; C \cdot 1                  &amp;amp; = &amp;amp; 50  \\&lt;br /&gt;
                                   &amp;amp;   &amp;amp; C                          &amp;amp; = &amp;amp; 50&lt;br /&gt;
\end{array}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Att bestämma &amp;lt;math&amp;gt; k \, &amp;lt;/math&amp;gt;:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; \begin{array}{rclcl}  f(x) &amp;amp; = &amp;amp; 50 \cdot e\,^{k\,x}         &amp;amp;   &amp;amp;   \\&lt;br /&gt;
                           f\,'(x) &amp;amp; = &amp;amp; 50 \cdot k \cdot e\,^{k\,x} &amp;amp;   &amp;amp;   \\&lt;br /&gt;
\end{array}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt; f\,'(0) = 5 &amp;lt;/math&amp;gt; innebär:	            &lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; \begin{array}{rcrcl} f\,'(0) &amp;amp; = &amp;amp; 50 \cdot k \cdot e\,^{k\,\cdot\, 0} &amp;amp; = &amp;amp; 5 \\&lt;br /&gt;
                                     &amp;amp;   &amp;amp; 50 \cdot k \cdot e\,^{0}            &amp;amp; = &amp;amp; 5 \\&lt;br /&gt;
                                     &amp;amp;   &amp;amp; 50 \cdot k \cdot 1                  &amp;amp; = &amp;amp; 5 \\&lt;br /&gt;
                                     &amp;amp;   &amp;amp;          k                          &amp;amp; = &amp;amp; {5 \over 50} \\&lt;br /&gt;
                                     &amp;amp;   &amp;amp;          k                          &amp;amp; = &amp;amp; 0,1&lt;br /&gt;
\end{array}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Att specificera &amp;lt;math&amp;gt; f(x) \, &amp;lt;/math&amp;gt;:&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;math&amp;gt; f(x) \, = \, 50 \, e\,^{0,1\,x} &amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

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