hailluka hailluka

03-04-2017
Mathematics

contestada

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

Respuesta :

03-04-2017

cod (-0.3-0.25)=
cos (-0.55)=0.45.

Answer Link

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

For which of the following reactions is the ratio kp/kc largest at 300 k?

Sammy is buying her first home and the selling price was agreed to at $182.000. She will put $6,000 down and has gotten a 30 year fixed rate loan at 6.5% Case

How did the stock market collapse of 1929 affect banks?

60 divide by p as a fraction

If an employer pays for a job-related physical examination, which of the following is true?

Which one of the following statements expresses a true proportion? A.) 42 : 7 = 6 : 2 B.) 14 : 6 = 28 : 18 C.) 2 : 3 = 3 : 2 D.) 3 : 5 = 12 : 20

define segregation and integration. which policy was generally supported in the post civil-war south?

A chemical bond formed when atoms share three pairs of electrons is __________.

What are the things that Albert Einstein created

The focus of the earthquake is the A. Point of failure of crystal rocks where the waves originated B. Location in which the earthquake was first felt C. P