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	<title>Chrystel &#8211; Die Kluge Eule</title>
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	<title>Chrystel &#8211; Die Kluge Eule</title>
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		<title>Was ist der genaue Wert von #Cos 135 #?</title>
		<link>https://dieklugeeule.com/was-ist-der-genaue-wert-von-cos-135/</link>
		
		<dc:creator><![CDATA[Chrystel]]></dc:creator>
		<pubDate>Sun, 08 Mar 2020 17:54:08 +0000</pubDate>
				<category><![CDATA[Trigonometrie]]></category>
		<guid isPermaLink="false">https://dieklugeeule.com/?p=4534</guid>

					<description><![CDATA[Was ist der genaue Wert von #Cos 135 #? Antworten: #cos 135° = -1/sqrt2# Erläuterung: #cos 135° = cos (45° + 90°) = - cos 45° = - 1/(sqrt2)# or #cos 135° = cos (180°-45°) = - cos 45° = - 1/(sqrt2)#]]></description>
										<content:encoded><![CDATA[<h1 class="questionTitle">Was ist der genaue Wert von #Cos 135 #?</h1>
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<p>#cos 135° = -1/sqrt2#</p>
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<p>#cos 135° = cos (45° + 90°) = - cos 45° = - 1/(sqrt2)#</p>
<p>or</p>
<p>#cos 135° = cos (180°-45°) = - cos 45° = - 1/(sqrt2)#</p>
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		<title>40 ist 20% von welcher Zahl?</title>
		<link>https://dieklugeeule.com/40-ist-20-von-welcher-zahl/</link>
		
		<dc:creator><![CDATA[Chrystel]]></dc:creator>
		<pubDate>Tue, 24 Dec 2019 17:41:01 +0000</pubDate>
				<category><![CDATA[Algebra]]></category>
		<guid isPermaLink="false">https://dieklugeeule.com/?p=3210</guid>

					<description><![CDATA[40 ist 20% von welcher Zahl? Antworten: 200 Erläuterung: #40/x = 20/100# #40/x*100 =20/100*100# #4000/x = 20# #4000*x/x =20*x# #4000 = 20x# #4000/20 = (20*x)/20# #200 = x#]]></description>
										<content:encoded><![CDATA[<h1 class="questionTitle">40 ist 20% von welcher Zahl?</h1>
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<p>200</p>
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<p class="gt-block">#40/x = 20/100#<br />
#40/x*100 =20/100*100#</p>
<p>#4000/x = 20#</p>
<p>#4000*x/x =20*x#</p>
<p>#4000 = 20x#</p>
<p>#4000/20 = (20*x)/20#</p>
<p>#200 = x#</p>
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