Recent content by Goethe10

Hello everybody. I'm foreigner and I'm studying mathematics. I would like to find online resources to help me understand/solve my problem, however due to fact that I'm studying math in my own language, rather than English. I have a bit of a trouble. Here is the problem I'm trying to solve...

I don't think so, ANYWAY I figured it out I'll try to clear things up about what I was trying to say.. so when I find x1 and x2 Say x1 = -2 and x2 = 5 the formula for this was = I need to take biggest root and subtract the other root. So 5 - ( - 2) = 7.

I'll try to explain something, excuse my English. So the original equation is -1/3x^3+1/2x^2+2x-5 With derivation I get -x^2+x+2 The roots are 1 and -1 and I need to find length of increasing function

Yes I am, sorry for confusion

Is there a formula or something? When I solve quadratic equation I get two roots of x1 and x2. how can I find out the length? Thank you

I figured it out :P Thanks Ivy. @Micromass I can't unfortunately. well Here is what I did I found derivative of f(x)= x^3+x^2-2x-3 which is 3x^2+2x-2 I knew that X0=1 and Y0=-3 then I inserted 1 instead of X0 and got 3 So I used this formula (Y-y0)=K(x-x0) I inserted x0 and y0 and I got Y + 3...

Hi everybody I'm trying to solve this equation the text in shown picture basically asks to find meaning of Xo By doing this But it says my answer is wrong, can anyone tell me why, Thank you?(Also what is this equation called in English?)

Thank you! :)

Ah, I see! :D Thank you So 3+2x^3 would be 6x^2 Can you please tell me what does "dy" means?

Haha, sorry. It was just smudge done by paint tool, not an actual D, sorry about confusion :P What do you mean "ordinary equation" Can you please give me the full name? Thanks.

Hello everybody, What is this equation called? I'm from non-English speaking country and I need to look up materials about how to solve it, Thank you.