document.write( "Question 432552: What is the exact value of Sin(cos-1 1/2)? Is it 1/2? \n" ); document.write( "
Algebra.Com's Answer #299941 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! The arccos(1/2) = 60 degs & 300 degs (in the 1st cycle) \n" ); document.write( "sin(60) = sqrt(3)/2 \n" ); document.write( "sin(300) = -sqrt(3)/2 \n" ); document.write( " \n" ); document.write( " |