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 Dec 2 asked When is $\sin(x)$ rational? Oct 19 accepted Metric space where the distance between arbitrary points is a constant Oct 19 comment Metric space where the distance between arbitrary points is a constant But there is always some form of it no...? Oct 19 comment Metric space where the distance between arbitrary points is a constant So not all metric spaces can have something like co-linearity? Oct 19 asked Metric space where the distance between arbitrary points is a constant Jul 17 comment Can this equation with Modulo be simplified? Apologies, there was a weird (to me) formmating issue (the '<' hid the rest of the line. Jul 17 revised Can this equation with Modulo be simplified? added 2 characters in body Jul 17 comment Can this equation with Modulo be simplified? @J.M since it is not possible to totally express .1 in binary in finite space, what do you really expect to happen? This is part of the reason the decimal type was created. Jul 17 answered Can this equation with Modulo be simplified? Jul 17 comment Odds of winning at minesweeper with perfect play @Aryabhata, Thank you. I realize this is stupid, but it "seems" that given a number of mines, and the area, it should be possible to determine the odds of winning with perfect play. To actually do the perfect play is not the way to go about it, but in the aggregate, I was hoping for some clever way. Jun 14 comment Show the correctness of a logarithmic inequality I am not sure, but couldn't you just do away with all the logs and have it not affect the inequality? Jun 12 comment Golomb sequence You are probably overflowing... Jun 5 comment Finding two sides of a triangle Hint: apply the definition of sine and cosine (geometrically, what do they mean?) Jun 4 comment Elementary doubt on ratios Looks good to me. Btw, there is no difference between the two answers you gave. Jun 4 accepted Odds of winning at minesweeper with perfect play Jun 3 comment A probability question about a dog What do you mean? Jun 3 answered A probability question about a dog Jun 3 comment A probability question about a dog Sounds like HW... Jun 2 comment Evaluate $\binom{n}{0}+\binom{n}{2}+\binom{n}{4}+\cdots+\binom{n}{2k}+\cdots$ Ok, so they are both exactly half the of the row (they get every element once as opposed to twice). Since the sum of a row is 2^n, this gives 2^(n-1) as the answer. Jun 2 comment count the number of subsets Got it, thanks.