Question: 
$\displaystyle \lim _{x \rightarrow 0} \frac{\cos x-1}{x^{2}}$ = ?

-1
$-\frac{1}{2}$
$\frac{1}{2}$

1
Answer: 
$-\frac{1}{2}$
Last Updated: 
13/10/2020 - 01:24