louispartridge2314 louispartridge2314
  • 22-05-2023
  • Mathematics
contestada

HELP!! If A+B+C = 180°, Prove that cos²A + cos²B + cos²C = 2 + sinAsinBsinC​

Respuesta :

Otras preguntas

4.2 7 5 7 = 3 1 9 d help me find what D is!!!!!!!!!!!!!!!!!!!!!!
Which property is used in the following equation (3•4)•5-3•(4•5)
WILL GIVE BRAINLIEST Are the seasons (summer or winter) the same in the Northern and Southern Hemispheres at the same time? When it is summer in the Northern He
Where can we put parentheses in 45 – 22 +9 to make it equivalent to 14? Choose 1 answer. 45 – (22 +9) (45 – 22) +9
I need a tutor can you help​
Harold offers advice and guidance to many young children and young adults in his neighborhood. Which of the following words best defines Harold’s role in the co
1. Why does your body need a communication system?
If 0.250 mol of reacted with aluminum in the reaction below what will be the pressure of the hydrogen gas that is produced if it is collected in a 10.0 containe
There are 11 apples in a basket. 5 of these apples are green.the rest of them are red. What are the ratio of all apples to red apples? What is the ratio of gree
What two factors help determine a work's success to an art historian?