證明0.9循環=1
1/3=0.3循環(1/3)*3=0.9循環又(1/3)*3=1so 0.9循環=1
_________________The art of doing mathematics consists in finding that special case which contains all the germs of generality
Let x=0.999999......(1)Then 10x=9.999999......(2)(2)-(1), we have9x=9Hence x=1This completes our proof.
已知1/3=0.3循環1/3*3=0.3循環*3→1=0.9循環
_________________欲速則不達
1-0.9循環因為=0.0循環1所以求不出到底跟一差多少只能算出0.0000000000000000000000000000000000000000000000.............................................................................................................................................當然用1/3的證法比較好
_________________dodo61411@yahoo.com.tw我只是苗小的幼草~~!
剛剛突然想到如果我上面的那個做法行的通的話那0.9循環1~9都=1囉??也就是說--我打錯ㄌ