document.write( "Question 1022987: 2sin^2 theta plus 3sin theta = -1
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\n" ); document.write( "0greater than or equal to theta greater than or equal to 2pi
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Algebra.Com's Answer #638558 by ikleyn(52788)\"\" \"About 
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\n" ); document.write( "2sin^2 theta plus 3sin theta = -1
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\n" ); document.write( "0greater than or equal to theta greater than or equal to 2pi
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document.write( "\"2%2Asin%5E2%28theta%29+%2B+3%2Asin%28theta%29\" = \"-1\",\r\n" );
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document.write( "\"2%2Asin%5E2%28theta%29+%2B+3%2Asin%28theta%29+%2B+1\" = \"0\".\r\n" );
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document.write( "Factor left side:\r\n" );
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document.write( "(2*sin(theta) + 1)*(sin(theta) + 1) = 0,   --->\r\n" );
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document.write( "\"2%2Asin%28theta%29+%2B+1\" = \"0\"  or  \"sin%28theta%29+%2B+1\" = \"0\",  --->\r\n" );
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document.write( "\"sin%28theta%29\" = \"-1%2F2\"  or  \"sin%28theta%29\" = -1,  --->\r\n" );
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document.write( "Solutions:\r\n" );
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document.write( "1.    \"theta\" = \"7%2Api%2F6\"  or  \"theta\" = \"11%2Api%2F6\"\r\n" );
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document.write( "or\r\n" );
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document.write( "2.    \"theta\" = \"3%2Api%2F2\".\r\n" );
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