Question

PLEASE HELP ME MATCH THEM!! I’m in need please.

Match each value with its formula ABC.

Answer 1

answers are like this: 1)Cos C 2)Cos B 3)Cos A 4)a 5)b 6)c all of them are different type of writing cosines law , just this.

Answer 2

Explanation:

Given are some formulae on left side and answers on right side

We have to match them.

WE can use cosine formula for triangles

`1) (a^2+b^2-c^2)/(2ab) =Cos C\\2)  (a^2+c^2-b^2)/(2ac) =Cos B\\3)  (c^2+b^2-a^2)/(2bc) =Cos A\\\4) √(b^2+c^2-2bc cosA) =a\\5) √(a^2+c^2-2ac cosB) =b\\6)√(a^2+b^2-2ab cosC) =c`

Thus matchings are shown above for all.