document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=833716>Question 833716</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the exact value of each expression.\r<BR>\n" );
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document.write( "a.) cot^-1(-square root 3)\r<BR>\n" );
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document.write( "b.) arccos(-1/2) </SPAN>\n" );
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document.write( "a.) cot^-1(-square root 3) = 60 degrees or pi/3<BR>\n" );
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document.write( "b.) arccos(-1/2) = 120 degrees or (2/3)pi<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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