document.write( "Question 498349: COS0=4/5, 270 <0<360 \n" ); document.write( "
Algebra.Com's Answer #337427 by lwsshak3(11628)\"\" \"About 
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COS0=4/5, 270 <0<360
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\n" ); document.write( "Inverse cos(4/5) in quadrant IV=323.13º
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