document.write( "Question 884512: solve equation for 0 degrees < or equal to x < or equal to 360 degrees\r
\n" );
document.write( "\n" );
document.write( "cos2x + 3sinx=2 \n" );
document.write( "
Algebra.Com's Answer #534369 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! solve equation for 0 degrees < or equal to x < or equal to 360 degrees \n" ); document.write( "solve for x (0 < x < 360˚) \n" ); document.write( "cos2x + 3sinx=2 \n" ); document.write( "cos^2x-sin^2x+3sinx=2 \n" ); document.write( "1-sin^2x-sin^2x+3sinx=2 \n" ); document.write( "-2sin^2x+3sinx-1=0 \n" ); document.write( "2sin^2x-3sinx+1=0 \n" ); document.write( "(2sinx-1)(sinx-1)=0 \n" ); document.write( ".. \n" ); document.write( "sinx=1/2 \n" ); document.write( "x=30˚, 150˚ \n" ); document.write( ".. \n" ); document.write( "sinx=1 \n" ); document.write( "x=90˚ \n" ); document.write( " |