document.write( "Question 254846: If x = 1 + 2^p and y = 1 + 2^-p then express y in terms of a single fraction involving x. \n" ); document.write( "
Algebra.Com's Answer #187165 by vksarvepalli(154)\"\" \"About 
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let 2^p =t\r
\n" ); document.write( "\n" ); document.write( "then 2^-p will be 1/t (this assumption is just for ease of view)\r
\n" ); document.write( "\n" ); document.write( "so x=1+t => t=x-1\r
\n" ); document.write( "\n" ); document.write( "and y=1+ 1/t\r
\n" ); document.write( "\n" ); document.write( "substitute the value of t\r
\n" ); document.write( "\n" ); document.write( "so we get y= 1 + 1/(x-1)\r
\n" ); document.write( "\n" ); document.write( "so \"y=x%2F%28x-1%29\"
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