FO3.ptx

<exercise>
  <statement>
    <p>
      Use an appropriate substitution
      to show that all of the following ODEs may be transformed into
      the same linear ODE.
      (Do not fully solve these ODEs.)
    </p>
    <ol>
        <xsl:for-each select="odes/*">
            <li>
                <m><xsl:value-of select="ode"/></m>
            </li>
        </xsl:for-each>
    </ol>
  </statement>
  <answer>
    <ol>
        <xsl:for-each select="odes/*">
            <li>
                Let <m><xsl:value-of select="sub"/></m>.
            </li>
        </xsl:for-each>
    </ol>
      <p>
          All ODEs transform into
      <m><xsl:value-of select="linear"/></m>.
      </p>
  </answer>
</exercise>