document.write( "Question 1145898: Show that sin18° = (sqrt5 - 1)/4 \n" ); document.write( "
Algebra.Com's Answer #767180 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Show it how?
\n" ); document.write( "Using what?
\n" ); document.write( "=================
\n" ); document.write( "IDK why the other tutor thinks I assumed it was a \"foolish question.\"
\n" ); document.write( "-------------------
\n" ); document.write( "If you know the sin(9) and the cos(9) degrees, you can use those to find the sin(18).
\n" ); document.write( "You can find it by other methods, depending on what you can use.
\n" ); document.write( "--------------
\n" ); document.write( "I can look things up online and cut and paste as well as the next person.
\n" ); document.write( "
\n" ); document.write( "
\n" );