document.write( "Question 342764: Solve for x:\r
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document.write( "3sin^2 x = cos^2 x ; 0 < = x < 2x \n" );
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Algebra.Com's Answer #245315 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 3sin^2 x = cos^2 x ; 0 < = x < 2x (I think you mean < 2pi) \n" ); document.write( "3sin^2(x) = 1 - sin^2(x) \n" ); document.write( "4sin^2 = 1 \n" ); document.write( "sin^2 = 1/4 \n" ); document.write( "sin(x) = ± 1/2 \n" ); document.write( "------------ \n" ); document.write( "x = 30, 150, 210, 330 or \n" ); document.write( "x = pi/6, 5pi/6, 7pi/6, 11pi/6 radians \n" ); document.write( " \n" ); document.write( " |