document.write( "Question 754020: What is the exact value of sin(75) degrees \n" ); document.write( "

Algebra.Com's Answer #458757 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "Either of these three ways is correct.  The first way is like the\r\n" );
document.write( "tutor above did it.  The second way gives the same answer in the\r\n" );
document.write( "same form.  The last one is in a different form but it is \r\n" );
document.write( "equal to the other one.\r\n" );
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document.write( "sin(75°) = sin(45°+30°) = sin(45°)cos(30°)+cos(45°)sin(30°) = ( =  =  \r\n" );
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document.write( "sin(75°) = sin(120°-45°) = sin(120°)cos(45°)-cos(120°)sin(45°) = ( = ( =  \r\n" );
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document.write( "sin(75°) = sin() =  =  =  =  =  = \r\n" );
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document.write( "Edwin

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