trigonometry_3

sec(xy)2b / tan (x+y)

W3C sample	WIRIS
[N/A]	$divide times sec times x y times 2 b tan plus x y$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="arith1">divide</csymbol>
    <apply>
      <csymbol cd="arith1">times</csymbol>
      <apply>
        <csymbol cd="transc1">sec</csymbol>
        <apply>
          <csymbol cd="arith1">times</csymbol>
          <ci>x</ci>
          <ci>y</ci>
        </apply>
      </apply>
      <apply>
        <csymbol cd="arith1">times</csymbol>
        <cn>2</cn>
        <ci>b</ci>
      </apply>
    </apply>
    <apply>
      <csymbol cd="transc1">tan</csymbol>
      <apply>
        <csymbol cd="arith1">plus</csymbol>
        <ci>x</ci>
        <ci>y</ci>
      </apply>
    </apply>
  </apply>
</math>

Author: Design Science, Inc. (D. Doyle, E. Cannon, E. Tabacman, R.Miner)