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

why homogenization prolong milk shelf life​
London bought 5 bottles of water a day for 18 days. On the 19th day, London bought 8 bottles of water. Write an expression that matches the sentence above.
What is 0.048 written as a fraction?
Choose the word or phrase that best completes each sentence. 1. The number of African Americans living in freedom in America was . 2. Free African Americans com
2/3 of 2 how do i get this answer
PLEASE HELP. (Find the area of park)
Imagine (0) aren’t any mobile phones or computers, and your house (1) internet. It’s the perfect holiday! Our computer doesn’t (2) help us relax. It (3) us
Why does Johnny tell Ponyboy he could never use a gun?
Evaluate 6 + 4/a + b/3 when a=4 and b=3.
what is the irony of text lebanon's drinking water.​