document.write( "Question 1126406: cos(2tan^-1(3/5)) \n" ); document.write( "
Algebra.Com's Answer #742708 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\"cos%282tan%5E-1%283%2F5%29%29\" .....\"tan%5E-1%283%2F5%29=30.96\"°
\n" ); document.write( "=\"cos%282%2A30.96%29\"°
\n" ); document.write( "=\"cos%2861.92%29\"°
\n" ); document.write( "=\"0.470704\"
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