document.write( "Question 1155028: Find all solutions of each equation in the interval [0,2π)
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Algebra.Com's Answer #777608 by Edwin McCravy(20062)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"2sin%5E2%28x%29-cos%28x%29+=1\"\r\n" );
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document.write( "\"2sin%5E2%28x%29-cos%28x%29-1=0\"\r\n" );
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document.write( "\"2%281%5E%22%22-cos%5E2%28x%29%29-cos%28x%29-1=0\"\r\n" );
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document.write( "\"2-2cos%5E2%28x%29-cos%28x%29-1=0\"\r\n" );
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document.write( "\"-2cos%5E2%28x%29-cos%28x%29%2B1=0\"\r\n" );
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document.write( "Multiply through by -1\r\n" );
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document.write( "\"2cos%5E2%28x%29%2Bcos%28x%29-1=0\"\r\n" );
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document.write( "Factor the left side:\r\n" );
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document.write( "\"matrix%281%2C3%2C%28cos%28x%29%2B1%29%282cos%28x%29-1%29%2C%22%22=%22%22%2C0%29\"\r\n" );
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document.write( "Use the zero factor principle:\r\n" );
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document.write( "Edwin
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