Question

PLEASE HELP ME MATCH THEM!! I’m in need please. Match each value with its formula ABC.

Answer 1

Answer:

Step-by-step 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

$1) \frac{a^2+b^2-c^2}{2ab} =Cos C\\2) \frac{a^2+c^2-b^2}{2ac} =Cos B\\3) \frac{c^2+b^2-a^2}{2bc} =Cos A\\\4) \sqrt{b^2+c^2-2bc cosA} =a\\5) \sqrt{a^2+c^2-2ac cosB} =b\\6)\sqrt{a^2+b^2-2ab cosC} =c$

Thus matchings are shown above for all.

Answer 2

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.