document.write( "Question 1102479: Is there a complex number solution to:
\n" );
document.write( "arccos(x) = 2 ? \n" );
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Algebra.Com's Answer #717215 by ikleyn(52788)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Let me translate the answer by @Stanbon to the regular Math language:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " The solution to the equation arccos(x) = 2 is the real number x = cos(2), where \"2\" means the angle of 2 radians.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " Using the tables, a computer or a calculator, x = cos(2) = -0.41615. . . \r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |