document.write( "Question 876120: plz help me solve this \r
\n" ); document.write( "\n" ); document.write( "tan-1[tan(200)] where 200 is in radians. \r
\n" ); document.write( "\n" ); document.write( "I've tied to solve it:
\n" ); document.write( "x must be -pi/2 < x < pi/2 \r
\n" ); document.write( "\n" ); document.write( "x= 200rad - pi = 20 rad (since tan is periodic)\r
\n" ); document.write( "\n" ); document.write( "so tan(inverse)(tan 20rad)= 20rad
\n" ); document.write( "because tan invrse and tan cancel each other
\n" ); document.write( "is my answer correct?? \n" ); document.write( "
Algebra.Com's Answer #528584 by Edwin McCravy(20086)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "tan-1[tan(200)]    \r\n" );
document.write( "\r\n" );
document.write( "You may as well just punch it out entirely on a calculator,\r\n" );
document.write( "since it doesn't involve a special angle. So you'll have to \r\n" );
document.write( "have to use a calculator anyway. So there's no need to simplify it. \r\n" );
document.write( "\r\n" );
document.write( "If you have a TI-83 of 84,\r\n" );
document.write( "\r\n" );
document.write( "Press ON\r\n" );
document.write( "Press CLEAR\r\n" );
document.write( "\r\n" );
document.write( "If your calculator is already in radian mode, skip \r\n" );
document.write( "these five steps, otherwise:\r\n" );
document.write( "\r\n" );
document.write( "Press MODE\r\n" );
document.write( "Press the down arrow key twice to scroll down to RADIAN\r\n" );
document.write( "Press ENTER\r\n" );
document.write( "Press 2ND\r\n" );
document.write( "Press MODE\r\n" );
document.write( "\r\n" );
document.write( "With calculator in radian mode,\r\n" );
document.write( "\r\n" );
document.write( "Press 2ND\r\n" );
document.write( "Press TAN, see  tan-1(\r\n" );
document.write( "Press TAN, see  tan-1(tan(\r\n" );
document.write( "Type 200)), see tan-1(tan(200))\r\n" );
document.write( "Press ENTER, see -1.06192983\r\n" );
document.write( "\r\n" );
document.write( "Answer: -1.06192983\r\n" );
document.write( "  \r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );