## Question

For students of class 6-8 (age 12 to 14)
Dipan
Posts: 158
Joined: Wed Dec 08, 2010 5:36 pm

### Question

.1 = 1 / 10...why we have used 1 in here for the point and 0 for the number?

nafistiham
Posts: 829
Joined: Mon Oct 17, 2011 3:56 pm
Location: 24.758613,90.400161
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### Re: Question

it is a ten based number system.when you multiply by ten you get a zero on the right side.when you divide by ten you get a zero on the left side.when there is no point a zero on the left side is valueless.but,when there is, it is not.
$\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0$
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.

Dipan
Posts: 158
Joined: Wed Dec 08, 2010 5:36 pm

### Re: Question

nafistiham wrote:.when you multiply by ten you get a zero on the right side.when you divide by ten you get a zero on the left side.when there is no point a zero on the left side is valueless.

can you make it more clear to me????I am getting 1 on the right side after multiplying by ten.........

*Mahi*
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### Re: Question

Dipan wrote:
can you make it more clear to me????I am getting 1 on the right side after multiplying by ten.........
Make sure what's your right side

Use $L^AT_EX$, It makes our work a lot easier!

nafistiham
Posts: 829
Joined: Mon Oct 17, 2011 3:56 pm
Location: 24.758613,90.400161
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### Re: Question

*Mahi* wrote:
Dipan wrote:
can you make it more clear to me????I am getting 1 on the right side after multiplying by ten.........
Make sure what's your right side
mahi, aren't you making this more complicated?

@Dipan,
suppose you have got $x$. now what would be $x \times 10$?
its $10x+0$. this the $0$ i am talking about which will be the একক স্থানীয় অঙ্ক (i don't know the translation )
$\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0$
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.