Question

why is .9 repeating NOT equal to one.

1/3=.333333333333...
1/3*3=.3333333333333...*3
1=.999999999999999999...

my math teacher says this is incorrect why is this? pls help.

Answer 1

Because infedecimals. Basically 1 -.99999.... Is a number so close to zero it is impossible to define. If this were infanct the case however and a number existed that was not 0 and not 0 it would wreck mathematics so infedecimals exist only theoretically. So .999... Is equal to 1 practically but not theoretically.

Answer 2

Answer:

Step-by-step explanation:i agree with her