document.write( "Question 603948: What is the exact value of-\r
\n" ); document.write( "\n" ); document.write( "cos^-1 (cos 2/7)
\n" ); document.write( "

Algebra.Com's Answer #381016 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
What is the exact value of-
\n" ); document.write( "cos^-1 (cos 2/7)
\n" ); document.write( "**
\n" ); document.write( "This problem is not written properly. The inverse of a trig function requires a value not an angle as it appears in this case. You probably meant cos=2/7.
\n" ); document.write( "
\n" );