Recent content by One-D

thanx for ur replies

I've got a problem with this: 5^n=80n find n! I can't solve out this one. thanx for ur help, I'm not sure if it's the right place for this thread.

now I m learning calculus 2, I just want to know, cause I got that questions on my mind. Do you know where I can find web so I can learn about calculus more, especially cal 2. thanks Cronxeh

thanx everyone

thanx for your replies

I got this problem from someone by forum too. I thought it wasn't so difficult.. thanks for reply. but is the function really can be integrated?

I thought the same, it's what I assumed (I heard from my teacher) before but I'm not quite sure. By the way, what does "The series must also converge" mean? and I don't know about Differential Galois Theory. Thanx for your reply :smile:

what's that? I don't know about it...

what does an equation need so that the equation can be integrated? not all of equation can be integarted right? I was quite confuse if it can be integrated or not whether I found a difficult integration. Thanx

hm you may be right

integral of sqrt(x^3 -1) dx. I have tries it with trigonometri subs, but I only found till integral of 2/3(sin^5/3 (tetha) / cos^2 (tetha) ) d(tetha)

yesterday I had thought it again and I think I have found it. but it's seems diffrent from yours. why does the integration to y? shouldn't it (4-y)? I assumed that the section is under z=4 and above z+y=4 inside x^2+y^2=4. p=3.14. I will check it again. thanx oh yes I got it now. you subtract...

hm do you mean where does 3 come from? in integration (calculus), we can find the formula by integration. for ball, find antiderivative of p f(x)^2 dx

problem: find volume bordered by cylinder x^2 + y^2 = 4 and y+z=4 and z=4. the answer is said to be 16p. but I couldn't find it. I found it in double integral part.so it must be solved with double integral. I tried with Jacobian tranformation. nut still couldn't solve it. I was confused...

thanx. know i understand. it's only a simple subs. thanks anyway.