Solve for x.

For the discussion of math. Duh.

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Skunk
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Solve for x.

Postby Skunk » Fri Aug 21, 2009 3:06 pm UTC

-(tan(2^(y+1) cos(x)))/(sec(2 x)+1) = sin^2(1/y)&&(-log(y)+2 i pi (left floor)(arg(y))/(2 pi)+1/2(right floor))^2/(log(2)+log(5))^2!=x

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Blatm
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Re: Solve for x.

Postby Blatm » Fri Aug 21, 2009 4:12 pm UTC

Uh, what?

mike-l
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Re: Solve for x.

Postby mike-l » Fri Aug 21, 2009 4:59 pm UTC

Clearly x = 7.
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Re: Solve for x.

Postby thicknavyrain » Fri Aug 21, 2009 5:02 pm UTC

Skunk wrote:-(tan(2^(y+1) cos(x)))/(sec(2 x)+1) = sin^2(1/y)&&(-log(y)+2 i pi (left floor)(arg(y))/(2 pi)+1/2(right floor))^2/(log(2)+log(5))^2!=x


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Re: Solve for x.

Postby Blokey » Fri Aug 21, 2009 5:07 pm UTC

Solved. Thank you for that thought-provoking, intellectually invigorating mental exercise.
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Puck
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Re: Solve for x.

Postby Puck » Fri Aug 21, 2009 5:20 pm UTC

C programmer's answer:
X could be just about anything, since the last two terms are "!= x".
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Re: Solve for x.

Postby stephentyrone » Fri Aug 21, 2009 5:33 pm UTC

For nearly any remotely sane interpretation of that pair of equations, there is a solution with x = 0. You're going to need to define the && operator for complex values before I can tell you what y is, though.
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Re: Solve for x.

Postby gmalivuk » Fri Aug 21, 2009 10:10 pm UTC

Skunk wrote:Solve for x.

Haha, no.

This is not a forum where we do your homework for you.
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Blatm
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Re: Solve for x.

Postby Blatm » Fri Aug 21, 2009 10:47 pm UTC

In before the lock?

cpp789
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Re: Solve for x.

Postby cpp789 » Sat Aug 22, 2009 4:42 am UTC

Before we can solve this (which I suspect that no one can, and you just made this up to see how we would react), we have to know what the && means and where the ! is supposed to go.

Divinator
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Re: Solve for x.

Postby Divinator » Sat Aug 22, 2009 8:36 am UTC

Clearly the answer is i8pi.

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thelehmanlip
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Re: Solve for x.

Postby thelehmanlip » Sun Aug 23, 2009 3:55 pm UTC

get a ti-89

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garypenn
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Re: Solve for x.

Postby garypenn » Sun Aug 23, 2009 11:46 pm UTC

Yes, if the purpose of this problem were to determine a value of x such that the equation is a true statement (if such an x exists), then clearly one should use a numerical approach. Just use a root finding algorithm.

If the purpose were to discover some novel problem solving technique in the course of the solution, then it should be stated to solve the problem analytically--because most people will refuse to go through the task if there is no interesting feature about it. The problem looks like a waste of time to me.

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Narius
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Re: Solve for x.

Postby Narius » Sun Sep 06, 2009 1:38 am UTC

42?

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Talith
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Re: Solve for x.

Postby Talith » Sun Sep 06, 2009 1:54 am UTC

Did that really deserve a thread necro?

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gmalivuk
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Re: Solve for x.

Postby gmalivuk » Sun Sep 06, 2009 2:52 am UTC

No.
Unless stated otherwise, I do not care whether a statement, by itself, constitutes a persuasive political argument. I care whether it's true.
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