document.write( "Question 1125836: if arctan x+2 arctan1 =3π/4, tanx is =?
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Algebra.Com's Answer #742146 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "1.  arctan(1) = .\r\n" );
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document.write( "2.  Therefore, the given equation takes the form\r\n" );
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document.write( "    arctan(x) + {{2*(pi/4)}}} = ,    or\r\n" );
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document.write( "    arctan(x) =  -  = .\r\n" );
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document.write( "3.  Therefore,  x = .\r\n" );
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