document.write( "Question 1093349: Hello, this is the problem I'm stuck on.\r
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document.write( "Given that the exact value of sin pi/10=(-1+sqrt 5)/4, for each question calculate the exact value of the given expression. YOU MAY LEAVE NESTED RADICALS IN YOUR ANSWER, BUT RATIONALIZE ANY DENOMINATORS. \r
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document.write( "1. sin pi/20. \r
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document.write( "I appreciate any help and thanks in advance! \n" );
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Algebra.Com's Answer #708036 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Look at \"Half angle formulas\" on Wikipedia. \n" ); document.write( " \n" ); document.write( " |