Recent content by neden

Hi, I'm scratching my head over the statement from my textbook which states when determinant is non-zero, the set of vectors blah blah is a basis for r^3. That does not make any sense to me because I know when a row of zeros in a matrix occur; the determinant is zero (through Gaussian...

Thank you, that particular explanation makes sense.

Thank you.

So basically now whatever I view on the camera at that specific lense that may turn out to be perfect for my vision does it also mean that it will also perfectly work for him? The answer is no, right? Even though the camera has done all the work for us, we still have our own subtle differences...

Ok, so (99/100)24 is the full solution? Well I guess I'll wait for the answer tomorrow. I'm sorry but I'm completely new to probability. Edit: (99/100)25 because total trials is 25, we don't care if 24 non-winners and 1 winner, we want the probability as a whole, right?

Ok for the coin question there's half the chance of getting heads in 25 coin tosses, which is why I said (1/2)25 In this case, I don't even know whether to start with 1/25 or 1/100, they both make sense; 1 winner out of the 25 customers or 1 winning ticket out of the 100 tickets. But which one?

none of the first 25 customers is the winner: (99/100)^24*(1/100) ? Edit: Wait... that doesn't make sense ... I'm confused!

(1/2) ^ 25, which is the same probability of tossing a coin 25 times and getting no tails; since both are have equiprobable outcomes.

vision problem! who's right? http://img412.imageshack.us/img412/8756/55201759.gif I don't know if this is a stupid question but one day me and my friend were talking and we got into an argument about viewing a screen through a camera's phone and a phoropter with the same lense in both...

Basically you are saying 1 - P(none of the first 25 customers is the winner) Ok... So the answer is: 1 - (24/25 * <100 choose 1>) ??

Hi, This is the question: Players are awarded $1000 dollars in a contest. Each player draws a ticket from a bowl of 100 raffle-tickets. Once a winning ticket is drawn the draw is over. For every ticket drawn it is with replacement. What is the probability one of the first 25 customers is the...

Thank you for the brief explanation, kind sir. I also found this formula called Hadamard's Maximum Determinant Problem. |detA|<=((n+1)^((n+1)/2))/(2^n) where n is the matrix length, in this case 3. The answer comes up to 2.

I was wondering what would be the largest possible value for a determinant, for a 3 by 3 matrix whose entries can only be 0 or 1. My solution is the following: 1 0 1 1 1 0 0 1 1 With a determinant of 2. Can anyone go any higher, or better yet is there an algebraic algorithm to...

Oh thanks!

Homework Statement I am to determine whether the following integral is convergent or divergent \int_0^1 \frac{sin(x)}{x} From what I hear since, lower limit is zero there is a removable discontinuity. Thus just because of this, it is convergent? Can someone let me know if this is correct.