document.write( "Question 1033489: If cos theta equals -4/9 with theta in quadrant 2, find sin theta. \n" ); document.write( "
Algebra.Com's Answer #648126 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If cos theta equals -4/9 with theta in quadrant 2, find sin theta. \n" ); document.write( "========= \n" ); document.write( "sin = sqrt(1 - cos^2) = sqrt(1 - 16/81) \n" ); document.write( "sin = sqrt(65)/9 \n" ); document.write( "sine is positive in Q2 \n" ); document.write( " \n" ); document.write( " |