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    Re: 299What is the acceleration

    why did you do that? ...

    ... if originally, $x = \sin{t}-\cos{t}$, then $v = \cos{t} + \sin{t} = 0 \implies t = \dfrac{3\pi}{4}$

    skeeter Yesterday, 19:28 Go to last post

    Re: 299What is the acceleration

    Wait! What do you mean by you changed it to v(t)? The particle's position is x(t) = sin(t) - cos(t) means that v = $ \displaystyle \dfrac{dx}{dt}$. You can't just change

    topsquark Yesterday, 17:53 Go to last post

    299What is the acceleration

    For $t \ge 0$ the position of a particle moving along the x-axis is given by $v(t)=\sin tó\cos t$ What is the acceleration of the

    karush Yesterday, 17:38 Go to last post

    Re: Proving limit by definition

    Hi [unm]Goody[/unm], and welcome to MHB!

    To prove that $ \displaystyle \lim_{x\to\infty}\frac{x-1}{x+2} = 1$, you have to show that, given $\varepsilon > 0$, you

    Opalg Yesterday, 14:52 Go to last post

    Proving limit by definition

    Hi, can anybody help me with this two limits? I have to prove them by the definition of limit. Thank you in advance.

    goody Yesterday, 12:31 Go to last post
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