hey there,
two question, i have no idea how to do them
[img=http://img88.imageshack.us/img88/9550/limitscx8.th.jpg]
thanks
hey there,
two question, i have no idea how to do them
[img=http://img88.imageshack.us/img88/9550/limitscx8.th.jpg]
thanks
(I assume both $\displaystyle \varepsilon$ and $\displaystyle k$ are supposed to be $\displaystyle >0$)
$\displaystyle \left| \frac{4x+5}{9x+6}-\frac{4}{9}\right|=\left|\frac{36x+45-36x-24}{9(9x+6)}\right|$ $\displaystyle
=\left|\frac{7}{27x+18}\right|<\left| \frac{7}{27x}\right|<\frac{7|\varepsilon|}{27|k|}
$
RonL