manishpkhrl88 manishpkhrl88
  • 14-10-2019
  • Mathematics
contestada

Prove that: Cos2pi/7+cos4pi/7+cos8pi/7=-1/2

Respuesta :

Аноним Аноним
  • 14-10-2019

Answer:

1. use a calculator to help

2. that's wrong because it equals 1.333...

Answer Link

Otras preguntas

Define network list the elements of network
Match each prefix with its definition.Match Term DefinitionAnti A) PartlyMulti B) AgainstSemi C) Many
What are behaviors that make up good public speaking?
What is the full form of WHO?
Define network list the elements of network
Adriana spent $24 on fruit punch and lemonade. Fruit punch costs $3 per bottle. Lemonade costs $2 per bottle. How many bottles of fruit punch could Adriana buy
In your opinion, how frequently do you believe that you might have to respond to a conflict situation? in penitentiary settings
Tả cảnh không khí ngày tết
What are the main causes of Florida residents' preference for paint powder coating?
In your opinion, how frequently do you believe that you might have to respond to a conflict situation? in penitentiary settings