Question

o.9999999....=1?

Answer 1

yes

Answer 2

no it equals the limit of 1

Answer 3

Clearly untrue...

Answer 4

What's a third?

Answer 5

Ishaan - that's considered annoying to some ppl :)

Answer 6

lol

Answer 7

Thank you Pjulian5

Answer 8

True statement.

Answer 9

your welcome

Answer 10

The limit of 1 ???

Answer 11

http://en.wikipedia.org/wiki/0.999

Answer 12

What's the limit of a 1/3?

Answer 13

well an infinity of nines is as close as you can get to 1 without ever reaching it

Answer 14

There are 2 decimal representations of 1

Answer 15

0.999 recurring and 1.000 recurring..

Answer 16

so your saying this i a decimal representaion of 1?

Answer 17

Yes.

Answer 18

can you show me the proof

Answer 19

What's a 1/3?

Answer 20

ok so 1-0.9999... is 0

Answer 21

Yes.

Answer 22

.333333333333333333333333333333333.........

Answer 23

What's 3*1/3?

Answer 24

.99999999999999999999999999999...............

Answer 25

or 1

Answer 26

QED

Answer 27

i was going to read that but i started classes should i pick it up

Answer 28

1/3+1/3+1/3 = 1

.333... + .333... + .333... = .999...

Answer 29

onoes the world is ending as we speak..... 3*1/3 = .9999999999999999999999

Answer 30

it just means that there is a infinitesimal difference

Answer 31

"infinitesimal"

Weierstrass banned them.

Answer 32

But the physicists never listen to mathematicians anyway...:-)

Answer 33

wait what lol go on

Answer 34

In the wolrd of epsilon delta (Calc 2?) there are no infinitesimals..

Answer 35

world

Answer 36

Physicists, who know better, continue to make use of them anyway, because they like an easier life and don't like math.

Answer 37

okay so estudier and everyone else it may be dumb to ask but still I want to ask

\[cos(cos(cos(cos(cos.........................(cos(cos(\theta))).....))))) = 1 \]is the true ?

Answer 38

where \(-\pi<\theta<\pi\)

Answer 39

is this some sort of sequence

Answer 40

ah someone asked this on openstudy and zarkon replied the question is false

Answer 41

Good job balancing those parantheses Ishaan :)

Answer 42

q
w
e
these are on seperate lines

Answer 43

whats up with the formatting?

Answer 44

i believe it would be false

Answer 45

false.

Answer 46

but think about it if .99999.. = 1 then ..
cos maximum value is 1 so lets say cos\(\theta\) = 1 then cos 1 < 1 then it just goes on ......

Answer 47

The dottie number...0.73908

Hit the cos key on your calculator repeatedly.

Answer 48

actually cos(cos(cos(....(cos(theta)))))))) approaches 0.739085133215 (something like that) as the number of cosines tends to infinity

Answer 49

ah ubuntu calculator lacks cos and sin I gotta download a new one

Answer 50

ah I see thanks

Answer 51

I'm surprised it took so long for me to see the

\[\text{is }.\overline{9}=1\]
post ;)