# Math Help - limits

1. ## limits

I understand the concept of L'hopital's rule, but its the limits and simple algebra that frustrates me a bit since i know its easy, but i dont seem to get it.

In the attachment i have what i did so far, but in the answer shows $\frac{7}{11}$

How?

2. Originally Posted by >_<SHY_GUY>_<
I understand the concept of L'hopital's rule, but its the limits and simple algebra that frustrates me a bit since i know its easy, but i dont seem to get it.

In the attachment i have what i did so far, but in the answer shows $\frac{7}{11}$

How?
$\cos x\xrightarrow [x\to 0] {}\cos(0)=1$

Tonio

3. Originally Posted by tonio
$\cos x\xrightarrow [x\to 0] {}\cos(0)=1$

Tonio
But the 7 in front of the x doesnt make it cos(7) ?