Can you explain why the fourth root of 9.1 is practically the same as 33/19? You shouldn't use even a calculator!
(9.1)^(1/4) ~ 33/19
9.1 ~ (33/19)^4
91/10 ~ 33^4/19^4
1 ~ (10 * 33^4)/(91 * 19^4) [calulator comes out]
1 ~ 11859210 / 11859211
So I guess the reason is these two consectutive large numbers each contain fourth powers as factors.

Posted by Jer
on 20050606 18:19:57 