Recent content by beanryu

i got it thanks alot

[SOLVED] Simple algebraic equation Homework Statement I got stuck on solving an equation on this step... x+ln(6-2e^x)=ln4 Homework Equations The Attempt at a Solution I just don't know how to do ln(6-2e^x)... in general, what's ln(a-b)? Thanx in advance.

i got the answer, my answer is (-2)ln(sqrt(x)-1) using u^2 = x method, than the answer in the textbook is (-2)ln(1-sqrt(x)), I took both derivativea they are the same... wierd... if dx/(sqrt(x)-x) = dy/(tan(y)), should I use answer (-2)*ln(1-sqrt(x)), because this is the function of x...

if x=v^2 >>> shouldn't dx = d(v^2)?

yeah

Homework Statement integrate 1/(sqrt(x)-x) Homework Equations The Attempt at a Solution 1st I tried to do it the "regular" way, I know that it must be the derivative of ln(sqrt(x)-x), but the derivative of sqrt(x)-x is not 1. So I added stuff to the equation to make it like...

Homework Statement How many ways can a deck of 52 cards be broken up into a collection of unordered piles of sizes: Three piles of 8 cards and four piles of 7 cards? Homework Equations The Attempt at a Solution ohkay, the first step i used is to think of the different piles as...

nevermind i misread the problem...

Homework Statement Plastic rods are cut into nominal length of 6 inches. Actual lengths are normally distributed about a mean of 6 inches and their standard deviation is 0.06 inch. Question: To what value does the standard deviation need to be reduced if 99% of the rods must be within...

thanks alot

the possibility of people investing in stock A is 0.40, the possibility of people investing in stock B is 0.15, and the possiblity of people investing in both stock is 0.05. the question is what is the possibility of people investing in stock A first and will also invest in stock B. I...

plato's republic... maybe, candide that's what i read in the course

What are the condition of agency in the individual and the State? Can someone tell me what the question is asking? I can't quite get what agency means... and condition of agency... any insight will be greatly appreciated.

Guys, what do you think? Anyone actually graduated with a bachelor in Applied Mathematics and Statistics and got a job? What is it? So far, applied math is the easiest subject I ever encountered. Just do as the book says, don't even need to go to lecture. But I suck at computer program...

tim lou are you in stony brook? it sounds like my modern physics class, I dropped it and decide never go into physics again, because it so freaking confusing and time consuming... my head was at the point of imploding...