Recent content by inferi

ok we have to integral f'(x)=a0+a1x+a2x^2+...+anx^n so we can apply the mean value theorem, and the integral of this equation is a0+(a1/2)+(a2/3)+...(an/n+1) is that right?

if tou do not know to answer just say so, but do not be like someone that thinks he is better than anyone ok.

so what about the second part of my question? please anyone can help?

you John or whatever this topic is for the question in the first post so be good and get out and make your own topic ok

sorry i did not put the full question it is really the interval (0,1) but there is no f(x) in the question only equations are: 1- a0+(a1/2)+(a2/3)+...(an/n+1)=0 2- a0+a1x+a2x^2+...+anx^n=0 that's it and if you use the mean value theorem you are going only to get a0 when x=0 and the...

so i took the derivative of g(x) and it is equal to =(x.derivative of f(x)-f(x))/x^2 then you equal it to zero (first derivative test) so the final answer is derivative of f(x)=f(x)/x and from the question we know that derivative of f(x) is continuous on [o,infinity) so f(x)/x (which...

hi, this question is so hard that i do not know it's head from it's tail. here this the question: let f be a funcation defined on [o,infinity),with the properties: f is continuous on [o,infinity),f(0)=0,and the first derivative of f exists on [o,infinity),and the first derivative of f...

hi, I have this equation that i need to prove i used numbers and worked but you have to prove it without substitution, here is the question. let a1,a2,...,an be all real number with the property that: a0+(a1/2)+(a2/3)+...(an/n+1)=0 prove that...

Thanks i got it the center is (0,1.25) and i used the other point just to make sure and it gave me the same answer.

hi, I have this question which is a challenging problem: in this link you will veiw the graph of the question https://www.physicsforums.com/attachment.php?attachmentid=11650&d=1195680084 the question is to find the center of the circle which it's radius is equal to 1. the parabola...

hi, there is a challenging problem that no one could answer it,so here it is if anyone wants to try: if x,z,y are all positive real numbers prove that: (1+x^2)(1+y^2)(1+z^2)/(xyz)>=8 so anyone can help please? thank you.

hi everyone this is a related rates question no one in the class could solve it. I could not find how to find the equation that relate all the things in the question.the question is: A spherical iron ball 8 in. in diameter is coated with a layer of ice of uniform thickness. If the ice melts...

thank u sennyk u were a great help

There is a question where you should find a formula for P-n(0) using the Legendre polynomials: P-n(x)=1/(2^n*n!) d^n/dx^n(x^2-1)^n , n=0,1,2,3... I tried to derive seven times by only substituting the n until n=7,I did that because i wanted to find something that i can build my formula but i...

I am also stuck in this formula ,I tried to derive seven times by only substituting the n until n=7,I did that because i wanted to find something that i can build my formula but i could not. anyone can help?