1. ## Capital Pi notation

Here is my question<br><br><img src="http://mathhelpforum.com/attachment.php?attachmentid=32147&amp;stc=1" attachmentid="32147" alt="" id="vbattach_32147" class="previewthumb">

2. ## Re: Capital Pi notation

$\displaystyle \prod\limits_{k = 1}^N k = N!$

3. ## Re: Capital Pi notation

Originally Posted by maykim1987
Here is my question<br><br><img src="http://mathhelpforum.com/attachments/algebra/32147-capital-pi-notation-pi.png" attachmentid="32147" alt="" id="vbattach_32147" class="previewthumb">
$\displaystyle \dfrac{1}{n} * \prod_{k=1}^nX_k = \dfrac{1}{n} * \left(X_1 * X_2 * ...\ X_n\right).$

The repeated product symbol of $\Pi$ applies to what is to the right of the symbol. Use of parentheses can be helpful.

$\displaystyle \prod_{k=1}^n\left(\dfrac{1}{n} * X_k\right) = \left(\dfrac{1}{n}\right)^n * \left(X_1 * X_2 * ...\ X_n\right).$

By the way, "I wanna an answer" is a rude way to ask for help.

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### capital pi mat

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