Can you explain why the fourth root of 9.1 is practically the same as 33/19? You shouldn't use even a calculator!

(In reply to I has to use a calculator a little. by Jer)

       19           33      

     x 19         x 33      

 ________     ________      

      171           99      

      19           99       

 ________     ________      

      361         1089      

    x 361       x 1089      

 ________     ________      

      361         9801        

    2166         8712       

   1083        10890        

 ________     ________      

   130321      1185921      

     x 91         x 10      

 ________     ________      

   130321     11859210      

 1172889                    

 ________                   

 11859211                  

Edited on June 6, 2005, 7:57 pm

Posted by Richard on 2005-06-06 19:47:47