Trig Limit: 5 - 5cos^2 x / 8x^2

[peblez]

Can someone show me how to solve this limit

5 - 5cos^2 x / 8x^2

i'm not sure how to solve this

thanks

 

[pka]

\(\displaystyle \L \frac{{5 - 5\cos ^2 (x)}}{{8x^2 }} = \left( {\frac{5}{8}} \right)\left( {\frac{{\sin (x)}}{x}} \right)^2\)