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 Dec7 comment Volume of Parallelepiped This may be of interest: math.uchicago.edu/~may/VIGRE/VIGRE2007/REUPapers/FINALAPP/… Nov22 comment How to find probability? @alonsos I just put in an edit with proper formatting, just needs to be approved. Nov18 comment Average number of tries to reach 5 successes. Well I apologize for the misunderstanding then. Thank you. Nov18 comment Average number of tries to reach 5 successes. Good answer, though 'And a failed flip when n=0' is wrong, you may have not seen the edit, but if n=0, the flip always succeeds. Nov18 comment Average number of tries to reach 5 successes. I've edited question to reflect that. Nov18 comment Average number of tries to reach 5 successes. @AndréNicolas No, the lowest it goes is 0. Nov18 comment Average number of tries to reach 5 successes. @Alistair The first coin, filling in the first blank that is at $1$ probability. Oct29 comment find the least positive residue of $1!+2!+3!+…+100!$ modulo each of the following integers What do you mean.. residue? Oct16 comment Does every vector space have an inner product? What have you tried? Why do you think yes? Oct16 comment Let $f(x)= (\sin x)^x$ Find $f'(\frac{\pi}{2})$ +1 for being clever. Hadn't thought of this. Sep23 comment Not understanding how to factor a polynomial completely @Cherry_Developer No it should be: $P(x)=(2x-3)(2x+3)(4x^2+9)$ Sep18 comment Probability of 7 Card Hand with All Different Ranks? The first card is from 52, then subtract 4 each time? Just a thought but i think it would be: (52*48*44*40*36*32*28) should might be the top? The first card should still be included in the multiplication? Not that sure, but maybe this helped? Sep15 comment Intuitively, how do you explain the concept of Flux? Could you possibly expand a bit more on this? I'm having a bit of trouble visualizing how it would work or a simple example of numbers or such? Sep12 comment IVP: $y'=\frac{y}{3x-y^2}$, $y(1)=1$ This might help? math24.net/first-order-linear-equations.html Aug1 comment Evaluate $\int\frac {\csc^2{x}-2005}{\cos^{2005}{x}} dx$ Can you show the work which you've tried? and specifically where you got stuck when doing it? Jul14 comment Using the Chain Rule to prove trig derivatives @YvesDaoust I see, that makes sense. Jul14 comment Using the Chain Rule to prove trig derivatives @YvesDaoust Really? Why? I've never seen the $\circ$ for my derivatives when doing them in class/examples. Jul14 comment Explaining Infinite Sets and The Fault in Our Stars @Raskolnikov what you mean by "double" I mean, to me say, 0.1111.. and 1.1111... they seem to be inherently different numbers? Jul14 comment Explaining Infinite Sets and The Fault in Our Stars This is above my understanding, but... it seems that there should be more between 0 and 2? From my sense. Jul13 comment What do we lose by differentiating without using the rules of differential calculus? It wouldn't be impossible, since you could just use the limit to get the derivative? More tedious, sure. But still possible.