document.write( "Question 1057996: Approximate the value of x (in radians) accurate to four decimal digits if:
\n" ); document.write( " sec^-1(2x)=3 \n" ); document.write( "

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Approximate the value of x (in radians) accurate to four decimal digits if:
\n" ); document.write( "sec^-1(2x)=3
\n" ); document.write( "---------
\n" ); document.write( "2x = sec(3) = cos(1/3)
\n" ); document.write( "x = cos(1/3)/2
\n" ); document.write( "----
\n" ); document.write( "x is not in radians it has no dimensions.
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