How do I find the Improper fraction for

$2{n\over2}=2+{n\over2}={4\over2}+{n\over2}={4+n\over2}$

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.