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

Aria is taking an anatomy class and is trying to remember the names of the bones of the skull, specifically the cranial bones. She decides to remember the six b

how to send message to someone in brainly

each digit in a falling jumber is less than the digit on its less. what id the lesdt falling number greater than 98,642

Actual distance = _ miles

PLEASE HELP EZ POINTS Chromosomes are _____________ during interphase ____________ mitosis begins

P(r)= 0.5t^4 + 3.45t^3 - 96.65t^2 + 347.7t, when 0 < t < 6 in this function above, P(t) is the amount of medication (in mg) in the blood stream at time t

each digit in a falling jumber is less than the digit on its less. what id the lesdt falling number greater than 98,642

There are 36 students in Mr. Meyer's class. Of those students, 5/12 played tag at recess, 1/3 played kickball, and the rest played basketball. How many students

A Streetcar Named Desire thesis essay

Un atome de cuivre a une masse de 10-25 kg. Quel est le nombre d'atomes de cuivre dans : 1. un kilogramme de cuivre? 2. un gramme de cuivre?