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 ( 23+ )
Otras preguntas
what volcano is in the middle of a continent
1. Which precedent was established by the Nuremberg and Tokyo war crimes trials
A water tank holds 18,000 gallons. How long will it take for the water level to reach 6000 gallons if the water is used at an average rate of 450 gallons per da
The Forensic Anthropology Facility is located in which US state?
-2/5n = -30 n= can some one help pleaasee
What is1 /5 divided by 4
a. Find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet. Write your answer as a fraction in simplest form slope: b. Th
jim has three times as many comic books as Charlie Charlie has two thirds as many books bob. bob has 27 books how many comic books does Jim have.
price of a lap-top is reduced by 25% to 637.50. What is the original price?
What system includes the core, mantle, and crust of the Earth?
