JosueMendez2303 JosueMendez2303
  • 10-03-2021
  • Mathematics
contestada

Find all solutions to the equation.
cos^2x + 2 cos x + 1 = 0 (4 points)

Find all solutions to the equation cos2x 2 cos x 1 0 4 points class=

Respuesta :

mayabhattarai826
mayabhattarai826 mayabhattarai826
  • 10-03-2021

Answer:

cos^2x + (1+1)cos x + 1 = 0

or,cos^2x + cos x + cos x + 1 = 0

or,cos x(cos x + 1) + 1 (cos x + 1) = 0

or, (cosx + 1) + (cosx + 1) = 0

either

cosx + 1 =0 or cosx +1 =0

Answer Link

Otras preguntas

The most popular presentation software is _____. PowerPoint Flash Timeslips None of the above
What is the Method called when you separate sawdust from the air?
2. If a mouse eats grass seeds, the mouse is a _____. producer herbivore decomposer carnivore
What is the first step in developing an outline? brainstorming labeling ordering organizing
I need your help please because I do not understand that I have to find the diameter and the radius of a circle 3.14 • 1.5 • 1.5 2) 3.14 • 1.5 • 1.5 3) 3.14•
a(3x-8)=b-18x a=? b=?
Which graph represents the function f(x)=-x2+5?
If we didnt stop hitler, would he have taken over the whole world?
Calculating area and perimeter worksheet works.com answer #4-9
3/4=9/x ASAP help now!!!