Create a third degree polynomial in standard form

20000 as first it increases by 2500 then by 5000 so next it will increase by 10000

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.