dovananhhao3112
dovananhhao3112
15-10-2021
Mathematics
contestada
cos2x + cosx + 1=0
lam on dum
Respuesta :
leylahassan73
leylahassan73
15-10-2021
Step-by-step explanation:
cos(2x)+cos(x)+1=0{2cos^2(x)-1}+cos(x)+1=0
let cos x=y
2y^2+y+1=0
now solve for y and then solve for y=cosx
Answer Link
VER TODAS LAS RESPUESTAS ( 22+ )
Otras preguntas
What Has Serena Williams Meant to Tennis, the Sports World and You?
How do prokaryotes and eukaryotes differ in terms of their compartmentalization?
Derek paid $3.20 for a 4 pack of Gatorade. What is the cost per bottle?
Use the situation and diagram below to answer the following. The figure shown to the right is made up of a rectangle and a triangle. 10. Write a formula for the
Write a negation for each statement: 1. All squares are rectangles 2. There exists a segment that has no midpoint
If you had been president during 9/11 what would you have done about it? (Other than extend airport security) PLEASE ANSWER FOR 100 POINTS
What are 5 of examples about positive and negative numbers and real life
Can anyone please solve these two questions
Compare the following numbers using division. Which of the statements below expresses the relationship between the numbers? 100 and 25 100 ÷ 25 = 4 25 is four t
d. work in a group of four . Develop a series of pictures to reflect the lifestyle of Nepali people from different parts of the country and display it in class
