Your browser does not seem to support CSS. If images appear below, please disregard them.
Topic Options
Rate This Topic
#25723 - 07/14/06 07:04 AM Math problems are fun!
Joined: Jun 2003
Posts: 807
Ghost Offline
UGN Super Poster
Ghost Offline
UGN Super Poster

Joined: Jun 2003
Posts: 807
Wisconsin
Anyone who solves the following for X, and PMs me the work and final solution (exact answer, no need to evaluate) gets a prize. I'll post the answer in a few days. If you're stuck, i'll post hints. Post the solution before I call it, and you incur my wrath!

Code:
2^X + 2^(X + 1) = 4^X + 4^(X + 1)

Top
Sponsored Links
#25724 - 07/16/06 07:50 AM Re: Math problems are fun!
Joined: Mar 2002
Posts: 1,136
pergesu Offline
UGN Elite Poster
pergesu Offline
UGN Elite Poster

Joined: Mar 2002
Posts: 1,136
Pimpin the Colorizzle
Do you seriously need help with your summer school?

[correct]. bitch

Top
#25725 - 07/16/06 07:56 PM Re: Math problems are fun!
Joined: Jun 2003
Posts: 807
Ghost Offline
UGN Super Poster
Ghost Offline
UGN Super Poster

Joined: Jun 2003
Posts: 807
Wisconsin
Correct, except for the fact that the logarithm of the numerator, excluding your stupid negative sign, is negative in and of itself. Bitch. :p

The negative sign you included makes it wrong.

And you didn't PM me how you solved (factored :p ) it, so you still haven't won.

The funny thing is the fact that you're the only one to solve it. I've gotten an answer in PM, but it was completely wrong. And everyone on IRC i originally tried it out on failed to solve it, so I had to give them the solution. Though to be fair, quick didn't have time to solve it.

Top
#25726 - 07/17/06 12:07 AM Re: Math problems are fun!
Joined: Jun 2003
Posts: 807
Ghost Offline
UGN Super Poster
Ghost Offline
UGN Super Poster

Joined: Jun 2003
Posts: 807
Wisconsin
Quote:
Originally posted by moddinati:
"it's me, the new one. I've been lurking around still, you haven't quite been able to chase me off.
The answer to your silly little math problem is X= -.5"
I don't know who this person is, but I hope none of you make the same mistake as him. Taking the exponent to be merely a quantity multiplied by the left side operand of the term is a big mistake. The ^ symbol means exponent, dude.

Top
#25727 - 07/24/06 11:08 PM Re: Math problems are fun!
Joined: Jun 2003
Posts: 807
Ghost Offline
UGN Super Poster
Ghost Offline
UGN Super Poster

Joined: Jun 2003
Posts: 807
Wisconsin
You all suck.

The answer is:
Code:
2^X + 2^(X+1) = 4^X + 4(X+1) //Original problem
2^X(1 + 2) = 4^X(1 + 4) //Time to factor!
2^x(3) = 4^X(5) //Simplify
(2^X) = 3/5 //Simplify and divide
log(3/5) = xlog2 //log it!
x = log(3/5)/(log(2))

Top
#25728 - 07/25/06 09:09 AM Re: Math problems are fun!
Joined: Feb 2002
Posts: 7,195
Gremelin Offline
Community Owner
Gremelin Offline

Community Owner

Joined: Feb 2002
Posts: 7,195
Portland, OR; USA
One question... who the fuck cares? lol...


Donate to UGN Security here.
UGN Security, Back of the Web, and VNC Web Services Owner
Top
#25729 - 08/05/06 05:07 PM Re: Math problems are fun!
Joined: Jun 2003
Posts: 807
Ghost Offline
UGN Super Poster
Ghost Offline
UGN Super Poster

Joined: Jun 2003
Posts: 807
Wisconsin
Ok, anyone up to a challenge.

Find a solution to:

a ^ (a ^ n) = b

Where n and b are known, a is an unknown.

Top
#25730 - 08/26/06 10:33 PM Re: Math problems are fun!
Joined: Mar 2002
Posts: 96
wizzy Offline
The other other white meat
wizzy Offline
The other other white meat

Joined: Mar 2002
Posts: 96
Iowa
this is why im a social science major...


Gizmo: Wizzy is SeXor
Gizmo: Wizzy is the other half of my Gizzy
Top
#25731 - 08/27/06 12:12 AM Re: Math problems are fun!
Joined: Mar 2002
Posts: 1,041
Infinite Offline
UGN Elite Poster
Infinite Offline
UGN Elite Poster

Joined: Mar 2002
Posts: 1,041
Canada eh
42

Top

Member Spotlight
Crime

Crime
SC, usa
Posts: 506
Joined: March 2002
Show All Member Profiles 
Sponsored Links
Forum Statistics
Forums46
Topics46,445
Posts81,615
Members2,157
Most Online1,567
Apr 25th, 2010
Latest Postings
Top Posters(All Time)
UGN Security 39,609
Gremelin 7,195
§intå× 3,255
SilentRage 1,273
Ice 1,146
pergesu 1,136
Infinite 1,041
jonconley 955
Girlie 908
unreal 860