document.write( "Question 1007464: Suppose x and y are positive real numbers. Use indirect proof to show that if x2 > y3 - 1 then
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document.write( "x > y or y < 2. \n" );
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Algebra.Com's Answer #623389 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! consider the following two case \n" ); document.write( "1) assume y > x, namely y = 4 and x = 3, then \n" ); document.write( "3^2 > 4^3 - 1 \n" ); document.write( "9 > 63 \n" ); document.write( "this is false \n" ); document.write( "2) assume y > 2, namely 3 \n" ); document.write( "3^2 > 3^3 - 1 \n" ); document.write( "9 > 26 \n" ); document.write( "this is false, therefore \n" ); document.write( "if x^2 > y^3 -1 then x > y or y < 2 \n" ); document.write( " \n" ); document.write( " |