document.write( "Question 432307: sin[arccos1/2 + arcsin(-1)] \n" ); document.write( "
Algebra.Com's Answer #300028 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! sin[arccos1/2 + arcsin(-1)] \n" ); document.write( ".. \n" ); document.write( "Using addition formula for sin: sin(x+y)=sinxcosy+cosxsiny \n" ); document.write( "sin[arccos1/2 + arcsin(-1)] \n" ); document.write( "sin(60+270)=sin60cos270+cos60sin270 \n" ); document.write( " =sqrt(3)/2)(0)+1/2(-1) \n" ); document.write( " =0-1/2=-1/2 \n" ); document.write( ".. \n" ); document.write( " |