Recent content by Tebow15

(Poolparty)

Test these for convergence. 3. infinity E...((-1)^n)*(n^3 + 3n)/((n^2) + 7n) n = 2 4. infinity E...ln(n^3)/n^2 n = 2 note: for #3: -((n^2 + 3n))/n) is all to the power of e Btw, E means sum. Which tests should I use to solve these?

Test these for convergence. 5. infinity E...((n!)^2((2n)!)^2)/((n^2 + 2n)!(n + 1)!) n = 0 6. infinity E...(1 - e ^ -((n^2 + 3n))/n)/(n^2) n = 3 note: for #3: -((n^2 + 3n))/n) is all to the power of e Btw, E means sum. Which tests should I use to solve these?

Test these for convergence. 1. infinity E...n!/(n! + 3^n) n = 0 2. infinity E...(n - (1/n))^-n n = 1 Btw, E means sum. Which tests should I use to solve these?

Homework Statement How do I find the inverse of these functions step by step? y= e^-x^3 y= sin(1/x) I know the solutions but I don't know how to work with these two functions. Does anyone know the steps to finding the inverse of these?

The answer eventually = 1 but I don't know how to get there

I may have confused you with the way I wrote it, it should look like this. (I'll use brackets to make it clearer) lim (x^3-2x^2+x)/(sinx/cosx) x->0

Homework Statement -19x^2-20x-9=0 The Attempt at a Solution With QF it looks like this: x=20+-(sqrt):1084/-38 How would I factor this without the QF?

Homework Statement lim x^3-2x^2+x/tanx x->0 The Attempt at a Solution All i know is that tan is going to break up into sinx/cosx so the equation will look like this lim x^3-2x^2+x/(sinx/cosx) x->0 I haven't worked with cubic or quadratic functions yet so I don't know...

i am very confused about these problems, my teacher is hard to understand. a)lim x^2+x+2/x^2-5x+6 ..x->3 b)lim (1/x)-1/x^2-1 ..x->1 c)lim x^2+2x-6/x^2+3x-2 ..x->2 d)lim x^2tanx ..x->0 e)lim x^2sec^2xcot^2x ..x->0 f)lim x^2sin(1/x) ..x->0 g)lim x^2/sin^2x...