jtkgotosleep123 jtkgotosleep123

01-12-2020
Mathematics

contestada

what is the exact value of cos(11pi/21)cos(pi/7)-sin(11pi/21)sin(pi/7)?

a. -squr3/2
b. -1/2
c. 1/2
d. squr3/2

Respuesta :

funnymunchies2004 funnymunchies2004

07-12-2020

Answer:

B

Step-by-step explanation:

-1/2

Answer Link

camjjwo camjjwo

12-06-2021

Answer:

B -1/2

Step-by-step explanation:

Answer Link

Otras preguntas

How do rain and snow remove particles from the atmosphere

what makes up the soil of the Palouse hills region and how was it deposited?

Following a vote on a bill in the Arizona State Senate, each of the following scenarios could be true, EXCEPT: A. The bill passes in the Senate and moves to the

Convert the scale map to unit rate. For every 3/10 of an inch that equals 7/8 mile. How many inches represents one mile?

marjorie uses 1/2 coop of sweet tea mix to make 8 ounces of sweet tea. Majorie wants to make 40 ounces of weet tea. How many scoops of sweet tea mix should she

A 2-kg object is moving horizontally with the speed of 4m/s. How much net force is required to keep the object moving at this speed in this direction?

Why do you think rates are usually written as unit rates?

a factory is emitting large amounts of CFCs into the atmosphere. how might this affect people?

What are the similarities of peter the great and emperor meiji?

Which location receives 12 hours of daylight and 12 hours of darkness on June 21?