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 sun is about 150 million km away from earth. The rays of sunlight that reach earth’s atmosphere are best represented as _____.
6(-2.3x- 5) + (4x + 11)
To the nearest fifth degree, what is the latitude and longitude of Sue Volcano?
Explain the difference between the terms demand and quantity demanded
what is the answer for |-7-8k|=73 ?​
Part A Which word best describes the character of Sylvia in “A White Heron”? A. impatient B. confident C. resentful D. shy Part B Which excerpt from “A Whit
Making Words: find the words with the letters below. Thanks!​
what does the following quotation suggest about the best way to form one character do you want to know who you are don't ask act action will delineate and defin
Which of these could define a hypothesis
Ramón siempre se siente con personas que no piensan igual que él. El encuentro entre Carmen y Carlos fue totalmente ; ¡un capricho del destino! Antes de la atra