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 <question type="category"><category><text>Pre-Calc/Trig Unit 3:  Analytic Trig and Applications/5.2  Verifying Trig Identities</text></category></question>
 
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 <question type="multichoice">
    <name>
      <text>Solve the problem.A wooden block sitting at rest on a flat, level board will ...</text>
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      <text><![CDATA[<b>Solve the problem.<br/><br/></b>A wooden block sitting at rest on a flat, level board will just begin to slide when the board is tilted up to a critical angle of inclination, θ<sub>s</sub> . An experiment that determines this critical angle can be used to find the coefficient of static friction, μ<sub>s</sub> , for the block on the board by using the relation <img align="bottom" src="@@PLUGINFILE@@/ppg__5.20802131418__f1q6g1.jpg"/>  Rewrite this relation using a quotient identity.]]></text>
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      <text></text>
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    <defaultgrade>1.0000000</defaultgrade>
    <penalty>0.3333333</penalty>
    <hidden>0</hidden>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <answernumbering>abc</answernumbering>
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      <text></text>
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      <text></text>
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      <text></text>
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    <answer fraction="100" format="html">
      <text><![CDATA[μ<sub>s</sub> = tan θ<sub>s</sub>]]></text>
      <feedback format="html">
        <text>Correct</text>
      </feedback>
    </answer>
    <answer fraction="0" format="html">
      <text><![CDATA[μ<sub>s</sub> = tan<sup>2</sup> θ<sub>s</sub>]]></text>
      <feedback format="html">
        <text>Incorrect</text>
      </feedback>
    </answer>
    <answer fraction="0" format="html">
      <text><![CDATA[μ<sub>s</sub> = cot θ<sub>s</sub>]]></text>
      <feedback format="html">
        <text>Incorrect</text>
      </feedback>
    </answer>
    <answer fraction="0" format="html">
      <text><![CDATA[μ<sub>s</sub> = sec θ<sub>s</sub>]]></text>
      <feedback format="html">
        <text>Incorrect</text>
      </feedback>
    </answer>
  </question>
 </quiz>
