2825613876
2825613876 2825613876
  • 18-06-2017
  • Mathematics
contestada

Find all solutions to the equation in the interval [0, 2π). (1 point) cos x = sin 2x

Respuesta :

Аноним Аноним
  • 18-06-2017
cos x = sin 2x
cos x = 2 sin x cosx

2sin x cos - cos x = 0

cos x( 2 sin x - 1) = 0

cos x = 0 or sin x = 1/2

so required values of x are pi/6 , 5pi/6 ,   pi/2,  3pi/2.
Answer Link

Otras preguntas

Jerry built a chest shaped like a rectangular solid. The base was 14 inches long and 10 inches wide. It had a height of 4 inches. What is the area of the base
Jerry built a chest shaped like a rectangular solid. The base was 14 inches long and 10 inches wide. It had a height of 4 inches. What is the area of the base
what is the period of the graph of the equation y=3cos2x
The name of a water solution of hydrogen fluoride, HF(g), is (A) fluoric acid (B) fluorous acid (C) perfluoric acid (D) hydrofluoric acid (E) hypofluorous
Please help the question is in the picture x
these two compounds are in the liquid phase at 293 K a. Br₂ and Hg b. Cl2 and F2 c. NH4^{+} and H₃O^{+} d. Fe and Co e. Diamond and graphite
explain why the percentage of resistant bacteria increased over time.
explain why the percentage of resistant bacteria increased over time.
How do you write 9,800,100 in exponents and expanded form
The name of a water solution of hydrogen fluoride, HF(g), is (A) fluoric acid (B) fluorous acid (C) perfluoric acid (D) hydrofluoric acid (E) hypofluorous