How do you find the exact value of cos(pi/4+pi/3)

Tia English 2022-09-30 Answered
How do you find the exact value of cos ( π 4 + π 3 )?
You can still ask an expert for help

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Answers (1)

Haylie Campbell
Answered 2022-10-01 Author has 13 answers
In order to evaluate cos ( π 4 + π 3 ) we need to use the compound angle formula for cos : cos ( A + B ) cos A cos B sin A sin B
cos ( π 4 + π 3 ) = cos ( π 4 ) cos ( π 3 ) sin ( π 4 ) sin ( π 3 ) = 1 2 1 2 1 2
3 2 = 1 2 2 3 2 2 = 1 3 2 2 = 2 6 4
Did you like this example?
Subscribe for all access

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

New questions