document.write( "Question 1135274: solve: x + tan (x) = 0 on [π/2 , π ] \n" ); document.write( "
Algebra.Com's Answer #752958 by ikleyn(52784)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The plot is below:\r\n" );
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document.write( "    \"graph%28+330%2C+330%2C+-1.5%2C+3.2%2C+-5.5%2C+5.5%2C%0D%0A++++++++++x%2Btan%28x%29%0D%0A%29\"\r\n" );
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document.write( "        Plot y = x + tan(x)\r\n" );
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document.write( "and it clearly shows that there is only one possible solution in the given interval near x= 2.\r\n" );
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document.write( "The solution CAN NOT be obtained algebraically.\r\n" );
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document.write( "The only way is to obtain an approximate solution NUMERICALLY.\r\n" );
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document.write( "I used online (free of charge) solver from the site  \r\n" );
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document.write( "https://www.wolframalpha.com/input/?i=x+%2B+tan(x)+%3D+0\r\n" );
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document.write( "It gave me the approximate solution  x= 2.02876 (only one in the given interval).\r\n" );
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