|yi||ah i see what you mean|
|raz0||TRWBW, So to solve f'(x)==0, I have use the power rule for ln, but how do I get rid of the 2 in 2*exp(..?|
|TRWBW||raz0: what did you get for f'(x) again? 2e^(-(2x)^2)-e^(x^2)?|
|TRWBW||raz0: multiply by e^(x^2). move the 1 to the other side. take logs|
raz0: what did you get for f'(x) again? 2e^(-(2x)^2)-e^(-x^2)?
( -x^2 not x^2)
|raz0||er yes, of course. :)|
Doh. Of course. I feel stupid for not seeing that now, hah. Oh well. it's late. :)
|TRWBW||raz0: no blood, no foul|
|eyie||how do i determine the sum of x^(2k+1) / (k(2k+1)), k=1 -> oo, |x| <= 1?|
|Kasadkad`||eyie: Note the 2k+1 in both the exponent and the denominator|
Remind you of anything?
|eyie||not really. i'm brushing up on some math i did way back|
What happens when you take the derivative of that series?
eyie: waht Kasadkad` said.
|eyie||TRWBW: how was that funny?|
|TRWBW||eyie: i was funny because i was typing in a long explanation then saw that Kasadkad` had said the key point|
|eyie||oh well. yeah.. so.. i can get something like x^2^k / k which i guess has something to do with ln (1 - x), but i dont really know how to progress from there|
|TRWBW||eyie: well start with u=x^2 in x^(2k)|
eyie: if you've gotten that, i don't know what more you expect
|eyie||how do i determine the constant?|
eyie: you need to integrate ln(x) at some point
for the constant, well x=0 -> 0
|eyie||too tired to think straight right now. could you write it out for me so i have something to contemplate when getting ready for bed?|
|raz0||TRWBW, Just want to thank you. Got it all now. Much appreciate the help. :)|
|TRWBW||eyie: i think you got all the main points. differentiate, substitute, relate to log, integrate, solve for the constant by f(0)=0|
|gxmzack-sleep||anyone have a sec?|
|TRWBW||okay, but damn, that was the second.|
4(x - 4)/(x +4)(x - 4)(x -4) - 3(x + 4)/(x +4)(x - 4)(x -4)
it looks nicer on paper :(
|evilMan||can i have a question, Exp(risk) = Est(dam) * Prob(mat), i have value of Est(dam) and Pro(mat) and Exp(risk), The question asking is Deermine the priorities of Exp(risk) using only Est(dam) parameter,|