{"result":{"text":"table attributes columnalign left end attributes row cell N o w comma T subscript r plus 1 end subscript over T subscript r equals fraction numerator scriptbase C subscript r end scriptbase presuperscript 8 left parenthesis 2 x right parenthesis to the power of r over denominator scriptbase C subscript r minus 1 end subscript end scriptbase presuperscript 8 left parenthesis 2 x right parenthesis to the power of r minus 1 end exponent end fraction equals fraction numerator 9 minus r over denominator r end fraction cross times 2 x end cell row cell rightwards double arrow T subscript r plus 1 end subscript over T subscript r equals fraction numerator 9 minus r over denominator r end fraction left square bracket x equals 1 divided by 2 right square bracket end cell row cell therefore T subscript r plus 1 end subscript over T subscript r greater than 1 rightwards double arrow fraction numerator 9 minus r over denominator r end fraction greater than 1 rightwards double arrow 9 minus r greater than r rightwards double arrow 2 r less than 9 rightwards double arrow r less than 4 1 half end cell end table"},"status":"ok"}