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 worlds narrowest electric vehicle is about 35 inches wide.how wide is the vehicle to the nearest foot
what is48 divided by 1261
Which of the following is an interjection? a. Hunting b. Is c. Wow d. Acrimonious
Read the sentence. Because my bike tire was low, it came as no surprise that it went flat just as it began to rain. Which is the best way to correct the pronoun
8y - 3 = 6y + 17 Help me solve?
When economists use the term "laissez-faire," what economic idea are they referring to? A. Government plays an important role in regulating the economy. B. Indi
How often do Americans elect members of the US Senate?
How did Shays's Rebellion highlight major problems with the Articles of Confederation?
In a sale, there is 50% off all prices. A chair costs £17.50 in the sale. How much was it before the sale?
The worlds narrowest electric vehicle is about 35 inches wide.how wide is the vehicle to the nearest foot