cos3
Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)
cos(5 pi / 6)
Content/ElementaryFunctions/cos
../../../Content/ElementaryFunctions/cos/cos2
../../../Content/ElementaryFunctions/cos/cos4
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<cos/>
<apply>
<divide/>
<apply>
<times/>
<cn>5</cn>
<cn>π</cn>
</apply>
<cn>6</cn>
</apply>
</apply>
</math>