divpatel divpatel
  • 17-02-2019
  • Mathematics
contestada


Solve the equation on the interval 0 ≤ θ < 2π.

2 cos ^2 θ - 3 cos θ + 1 = 0



Would really appreciate answer for this.

Respuesta :

danieljelin danieljelin
  • 17-02-2019

Answer:

{0, π/3, 5π/3}

Step-by-step explanation:

Let x = cos θ. Then:

2x² - 3x + 1 = 0

x = (3 ± 1)/4

x1 = 1, x2 = 1/2

If cos θ = 1, then θ = 0

If cos θ = 1/2, then θ = π/3 or 5π/3

Answer Link

Otras preguntas

What is the preamble and what is its purpose
which statement describe a person making a risky health decision as a result of an impulse
Write the number for the item from the item bank in its corresponding match.
what is the explaination of power
Can someone help me with this ?!
True or false? The king of England controlled all the English colonies in America.
Which statements best describe the process of radioactive decay? Check all that apply. An unstable isotope changes until it reaches a different element that is
a house cost 120,000 whenit was purchased. the value of the house by each year find the growth of each month
Which statements reflect a central theme of Nelson Mandela's Nobel Prize address? Select all that apply. Unselfish acts in defense of justice and human dignity
Find the radius of a circle in which an inscribed square has a side of 4 inches.