document.write( "Question 603103: Solve over [0,360): sin^2 theta = cos^2 theta + 1 \n" ); document.write( "
Algebra.Com's Answer #380586 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve over [0,360): sin^2 theta = cos^2 theta + 1 \n" ); document.write( "sin^2 theta - cos^2 theta - 1 = 0 \n" ); document.write( "sin^2 theta - cos^2 theta - sin^2 theta - cos^2 theta = 0 \n" ); document.write( "2cos^2 = 0 \n" ); document.write( "theta = 90 degs, 270 degs \n" ); document.write( " |