<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mtext>The same expression </mtext> 
  <mstyle displaystyle="true" scriptlevel="0">
    <mrow>
      <mo form="prefix" fence="true" stretchy="true" lspace="0em" rspace="0em">[</mo> 
      <mfrac>
        <mrow>
          <mrow>
            <mo form="prefix" fence="true" stretchy="true" lspace="0em" rspace="0em">&#x02225;</mo> 
            <mfrac>
              <mrow>
                <mrow>
                  <mi mathcolor="gray">sin</mi> 
                  <mo rspace="verythinmathspace">&#x02061;</mo> 
                  <mi>&#x003B8;</mi> 
                </mrow> 
                <mo form="infix">+</mo> 
                <mn>1</mn> 
              </mrow> 
              <mn>11</mn> 
            </mfrac> 
            <mo form="postfix" fence="true" stretchy="true" lspace="0em" rspace="0em">&#x02225;</mo> 
          </mrow> 
          <mo form="infix">-</mo> 
          <mi>x</mi> 
        </mrow> 
        <mfrac>
          <msup>
            <mi>x</mi> 
            <mn>2</mn> 
          </msup> 
          <msub>
            <mi>a</mi> 
            <mn>1</mn> 
          </msub> 
        </mfrac> 
      </mfrac> 
      <mo form="postfix" fence="true" stretchy="true" lspace="0em" rspace="0em">]</mo> 
    </mrow> 
    <mo form="infix">+</mo> 
    <mrow>
      <mo form="prefix" fence="true" stretchy="false">[</mo> 
      <mn>1.0</mn> 
      <mo form="postfix" fence="true" stretchy="false">]</mo> 
    </mrow> 
  </mstyle> 
  <mtext> in a display.</mtext> </math>