Desigurl
Desigurl
10-02-2019
Mathematics
contestada
PLEASE HELP!!!!!!!!!!!
Respuesta :
5naka
5naka
11-02-2019
by using identity sin²θ=1 - cos²θ
3sin²θ = 4cosθ - 1
3(1 - cos²θ) = 4cosθ - 1
3 - 3cos²θ = 4cosθ - 1
3cos²θ + 4cosθ - 4 = 0
(3cosθ - 2)(cosθ + 2) = 0
cosθ = ⅔
θ = 48.19° or θ = 311.81°
Answer Link
VER TODAS LAS RESPUESTAS ( 16+ )
Otras preguntas
If f(x) = 2x2 − 30, find f(4).
The process of recording the strength of the contraction of a muscle when it is stimulated by an electrical current is known
What is the coefficient of the c-term of the algebraic expression 14a-72r-c-34d?
Which of the following is a monomial? a. 2x + yz b. 2x − yz c. 2 + xyz d. 2xyz^2
One of the Only important reasons for using only reliable water sources is to reduce
What is a likely explanation for why the budget of a government agency might increase beyond its optimal size?
How did expansion threaten the roman republic?
Find square root of 1849/289
Earned at least $125 working at the mall for 13 hours last week. How many dollars per hour does Max earn? Identify the number(s) that are included in the soluti
what is the measure of <A? click to see angle best answer will be brainlest
