But the unit digit of something rounded is not always the same as the unit digit of the number itself.Scorpiour wrote:
that it is, that's why i call his solution is a "tricky way"Frostings wrote:
here's some fix about solution.
(√2+ √3)^8 is not integer i got rounding off to the nearest integer
if you don't round you get a completely different answer but the unit digit is still 7 I think
Take 7.75. It's unit digit is 7 but if you round it, you get 8.
I'm not sure i follow the logic here.