An algebra problem by I G

Algebra Level 2

Is it true that $1 = 0.999\ldots ?$

Note that there is an infinite number of 9's.

No Yes

1 solution

I G
Jun 12, 2020

\textbf{If} $10N = 9.9999...$

\textbf{Then} $N = .9999....$

\textbf{Subtract N from 10N, leaving you with} $9N=9.$

\textbf{So then} $N=1$ . \textbf{But we already know that} $N=.9999...$ \textbf{as well.}

\textbf{So} $1=.9999....$

LaTeX, please! @I G

A Former Brilliant Member - 12 months ago

how do i use LaTeX

I G - 12 months ago

@I G : Search up Brilliant Latex Guide on your web browser and click on the one by Daniel Liu. I think that's the best guide because it's the most comprehensive.

Ved Pradhan - 12 months ago

Ok thanks.

I G - 12 months ago

It's not working the \textbf { } is showing.

I G - 12 months ago

You need to wrap it like this: $and$ and it produces this:

$\textbf{If}$

A Former Brilliant Member - 12 months ago

An algebra problem by I G

1 solution

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