hailluka hailluka
  • 03-04-2017
  • Mathematics
contestada

simplify cos(-1/3+-1/4)

Respuesta :

jozzy4
jozzy4 jozzy4
  • 03-04-2017
cod (-0.3-0.25)=
cos (-0.55)=0.45.
Answer Link
ghanami
ghanami ghanami
  • 03-04-2017
hello :
cos(-π/3 -π/4)  =  cos(-  (π/3 +π/4)  ) = cos  (π/3 +π/4)  
                       = cos(π/3) cos(π/4) - sin(π/3) sin(π/4) 
                       = (1/2)(√(2)/2) - (√(3)/2)(√(2)/2)
                       =(√(2)-√(6)/)/4
Answer Link

Otras preguntas

Solve the formula 18x + 3y = 15 for y. ​
the rational and reasonable part of personality is known as the
list of five number whose values are between 50.98 and 51.6
what happens in scene 4 because of an event in scene 3? parts of play
What is the most increased force protection level for a base/installation?
show me how you solve it
In the article about Ellie Wiesel how does the article in paragraph 10 contribute to the central idea of the text? Write at least 4 sentences explaining your an
2(3x+6) = 3(2x-6) solve equations with variables on both sides
how does the respitory and cardiovascular systems work to bring oxygen to cells and remove carbon dioxide
Follow the steps above and find c, the total of the payments, and the monthly payment. Choose the right answers. Joe Football buys a big-screen TV. The price, i