My Math Forum > Math 3 8's to make 24 -- my challenge puzzle

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November 25th, 2014, 07:44 PM   #21
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Quote:
 Originally Posted by Math Message Board tutor You have rocks in your head, and your a psychotic liar. You need those rocks kicked out of your head. I told you to stop posting on this thread, you punk. You're to do what I tell you to do, you persistent troll. Get off the thread!
Please post civilly and without painting violent pictures.

You cannot dictate who posts where, no matter how much you may dislike someone. I would advise you to revise your list of ignored users if you do not like what a particular person has to say.

But, you cannot be calling people names and telling them they need for their heads to be kicked. Be advised that this will not be tolerated.

 November 25th, 2014, 07:48 PM #22 Banned Camp   Joined: Jun 2014 From: Earth Posts: 945 Thanks: 191 I'm advising you, MarkFL and all of the moderators, *take care of business* and ban him now and delete his posts off of this thread, because they're inappropriate. How many times must I send PMs to your moderators for his repeat harassment!? YOU take care of business on YOUR end now. Last edited by skipjack; November 27th, 2014 at 11:28 AM.
November 25th, 2014, 07:53 PM   #23
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From: St. Augustine, FL., U.S.A.'s oldest city

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Math Focus: Calculus/ODEs
Quote:
 Originally Posted by Math Message Board tutor I'm advising you, MarkFL and all of the moderators, *take care of business* and ban him now and delete his posts off of this thread, because they're inappropriate. How many times must I send PM's to your moderators for his repeat harassment!? YOU take care of business on YOUR end now.
We are taking care of business, thank you very much.

You are abusing the "Report Post" feature, when it is in fact you who are posting inappropriately. You apparently do not take it well when someone disagrees with you, and then you call for their posts to be deleted.

We are not going to delete posts because you don't like that someone disagreed with you.

So, when someone disagrees with you, refute them civilly, or ignore them, but do not call them names, or otherwise become aggressive.

Last edited by skipjack; November 27th, 2014 at 11:29 AM.

November 25th, 2014, 08:00 PM   #24
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Quote:
 Originally Posted by jks $\displaystyle \large \frac{8}{\left(\sqrt{\sqrt{8+8}}\right)!} \ !$ $\displaystyle \large \sqrt{8 \times \left(\sqrt{\sqrt{8+8}}\right)!} \quad !$ I think I can guess why the number of factorials is limited to 2.
These two expressions don't count, because the factorial signs next to each parenthetical expression
can be removed and the expression still equals 24. In other words,
they are not necessary. Only the outermost factorial sign on each one to make them four factorial, respectively, are required.

 November 25th, 2014, 08:01 PM #25 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs $\displaystyle \frac{8!!}{8+8}=24$
November 25th, 2014, 08:12 PM   #26
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Quote:
 Originally Posted by MarkFL $\displaystyle \frac{8!!}{8+8}=24$
The double factorial one is valid.

Then there are more than the five I referred to.

Last edited by Math Message Board tutor; November 25th, 2014 at 08:15 PM.

 November 26th, 2014, 07:39 PM #27 Senior Member     Joined: Jul 2012 From: DFW Area Posts: 642 Thanks: 99 Math Focus: Electrical Engineering Applications $\displaystyle \large \sqrt{\sqrt{8 \times 8}+8} \quad !$
November 26th, 2014, 07:53 PM   #28
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Quote:
 Originally Posted by jks $\displaystyle \large \sqrt{\sqrt{8 \times 8}+8} \quad !$
Yes.

November 26th, 2014, 08:02 PM   #29
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Quote:
 The double factorial one is valid.
I don't understand how it can be valid

8! = 40320
Thus 8!!= 40320!

This woud be a very large number. Divide it by 16 and you surely don't get 24.

 November 26th, 2014, 08:50 PM #30 Senior Member     Joined: Jul 2012 From: DFW Area Posts: 642 Thanks: 99 Math Focus: Electrical Engineering Applications $\displaystyle 8!! \ = \ 8 \times 6 \times 4 \times 2$ Look here. Thanks from MarkFL

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