sandragsmart sandragsmart
  • 01-06-2018
  • Mathematics
contestada

If cosine of x equals 1 over 2, what is sin(x) and tan(x)?

Respuesta :

mkryukova19 mkryukova19
  • 01-06-2018
If cos x = 1/2, to find x  we can use formula , 

sin² x + cos² x=1
sin²x = 1- cos ² x
sin²x=1-(1/2)² =3/4

sin²x =3/4
√(sin²x)=+/-√(3/4)=√(3)/2

sin x= √(3)/2, and sin x= - √(3)/2,

tan x = sin x/cos x
tan x = √(3)/2/(1/2)= √(3), and tan x = -√(3)/2/(1/2)= -√(3)

sin x= √(3)/2, and sin x= - √(3)/2,
tan x = √(3), and tan x = -√(3)

If you need only positive values you can use, 
sin x= √(3)/2, 
tan x = √(3).



Answer Link

Otras preguntas

Who was the prime minister of the Great Britain during world war 11?
How do you divide can someone plz tell me
how many solutions does the equation 9x+27=27 have ?
The cost of a disability is not generally a burden to the disabled person because it is fully funded by the government. true or false?
land granted by one lord to another
Isaiah walks 3 miles due north, turns and then 5 miles due east. How far is he from his starting point?
What isthe charaterics of matter?
You easily can give slides in a presentation a professional and integrated appearance by using a placeholder.
Write possible negative effects of crime in your community?
Powerpoint displays many that are varied and appealing and give you an excellent start at designing a presentation