Recent content by giokrutoi

yes that is another good approach thanks very much

i got it thank you very much

∫x^2/(4x+1)^10 dx i know that solving this is possible by partial fractions like A/4x+1 + (Bx+C)/(4x+1)^2 + (Dx+E)/(4x+1)^3 and so on but i would like to know if there is another way of solving this.

Homework Statement f(n) is function that takes input n and outputs the smallest integer grater that n^pi prove that there exists natural numbers abcdwxyz that are all not smaller than 2015 such that equation is satisfied f(x) + f(y) + f(z) + f(w) = f(a) + f(b) + f(c) + f(d) and they abcd...

nope I saw it in teachers examine test and I am trying to figure it out which answer is correct and how it works.

nope I don't know it I m in high school

SORRY but I don't know how to do that

so something like the image in attachment where f =ma = w^2 r

so you assume that it won't come out of tube until critical w

the force by w is so high that vacuum can't hold core inside and the rest space is then replaced by air

so you say that it will increase it's displacement from the tube linearly as w increases linearly after some critical w did I get it right?

Homework Statement the tube is closed at the one end and there is a cylinder if w increases linearly what will happen to the cylinder see image attached Homework EquationsThe Attempt at a Solution I guess that there create vacuum will be created and this will prevent cylinder from moving but...

I don't get the second picture

1/R = 1/(1/r1+1/r2+ 1/r3)

Homework Statement the image of circuit is in attachment the question is to find the current through the battery Homework EquationsThe Attempt at a Solution I think that there is a y connection so above two and centered one form y from formula the whole resistance is 1 than I imagine bottomed...