document.write( "Question 934018: solve:\r
\n" ); document.write( "\n" ); document.write( "2 cos beta - 1= 0\r
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Algebra.Com's Answer #568046 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2cos%28beta%29=1\"$
\n" ); document.write( " $\"cos%28beta%29=1%2F2\"$
\n" ); document.write( " $\"beta=60\"$ and $\"beta=300\"$
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