Example ex5-09

Prev: ex5-08

Next: ex5-10

(a + b) a b (c + d) c d a b c d

<math>
<semantics>
  <mrow>
    <semantics>
      <mrow><mo>(</mo><mi>a</mi> <mo>+</mo> <mi>b</mi><mo>)</mo></mrow>
      <annotation-xml encoding="MathML-Content">
        <apply><plus/><ci>a</ci> <ci>b</ci></apply>
      </annotation-xml>
    </semantics>
    <mo>⁢</mo>
    <semantics>
      <mrow><mo>(</mo><mi>c</mi> <mo>+</mo> <mi>d</mi><mo>)</mo></mrow>
      <annotation-xml encoding="MathML-Content">
        <apply><plus/><ci>c</ci> <ci>d</ci></apply>
      </annotation-xml>
    </semantics>
  </mrow>
  <annotation-xml encoding="MathML-Content">
    <apply><times/>
      <apply><plus/><ci>a</ci> <ci>b</ci></apply>
      <apply><plus/><ci>c</ci> <ci>d</ci></apply>
    </apply>
  </annotation-xml>
</semantics>
</math>