Ankit214
Ankit214 Ankit214
  • 16-09-2022
  • Mathematics
contestada

If A + B + C = 180° Then prove that cos2A - cos2B - cos2C = 4cosA sinB sinC - 1​

Respuesta :

tassasankar888
tassasankar888 tassasankar888
  • 16-09-2022

Answer:

please give the question clearly

Answer Link

Otras preguntas

Something crusaders brought back to Europe that helped to preserve food
Which factor promoted the development of new forms of entertainment such as dance halls, carnival rides, and professional sports? A. Busy city people no longer
A number times eight is equal to forty-five
What is the MAIN reason that employers hired young boys and girls to work in factories and mines? Children need work and did not complain. Employers paid childr
powers that are actually stated in the constitution
Name the largest creature on earth.
Why did Constantine move the capital of the Roman Empire A. The Pax Romana was established, which resulted in a period of peace B. The Edict of Milan helped spr
add 800 +6543=a what dose a stand for
Which population increases the amount of soil nutrients available to plants? A. a fox that buries its meal B. hummingbirds that pollinate flowers as they feed C
what is the value of the 5 in 5.953