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File:	StrictContent/ElementaryFunctions/arccos/arccos4
CVS-ID:
Author:	Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)
Description:	- ( arccos ( 2 x + pi / 2)
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Source Code:

<math xmlns="http://www.w3.org/1998/Math/MathML">
         <apply>
            <csymbol cd="arith1">unary_minus</csymbol>
            <apply>
               <csymbol cd="transc1">arccos</csymbol>
               <apply>
                  <csymbol cd="arith1">plus</csymbol>
                  <apply>
                     <csymbol cd="arith1">times</csymbol>
                     <cn>2</cn>
                     <ci>x</ci>
                  </apply>
                  <apply>
                     <csymbol cd="arith1">divide</csymbol>
                     <csymbol cd="nums1">pi</csymbol>
                     <cn>2</cn>
                  </apply>
               </apply>
            </apply>
         </apply>
      </math>