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 ( 12+ )
Otras preguntas
Which of the following investments allow investors to invest in diversified (different) accounts by putting their money with others, and then investing in an ar
How do I solve this equation?
Are ionic compounds stronger than covalent compounds?
37 = 6m – 3 + 3m - 5m
Use the cosine double-angle identity cos(2θ) = 2cos^2θ-1 to derive an identity for cos^2θSHOW YOUR WORK IN STEPS PLEASE. ANSWER ASAP IF U CAN.
I need help its due in 20 minutes
The pit and pendulum What happened to the narrator? A The narrator was sentenced to life in prison B The narrator was sentenced to die. C The narrator lost con
I WILL GIVE BRAINLIEST!! 20 POINTS!! HELP!! An ordered pair satisfies the equation is the point lies on the _________________ line
-4x-10≤2 A)x≤-3 B)x≥-3 C)x≤2 D)x≥2
Which expression has a value of 74 when x = 10, y = 8, z = 12 A. 4xyz B.x + 5y + 2z C. 2xz – 3y D. 6xyz + 8
