bsneed01 bsneed01
  • 24-04-2018
  • Mathematics
contestada

what is the first step to solve this equation 4cos(x)=1+2cos(x)?

what is the first step to solve this equation 4cosx12cosx class=

Respuesta :

mkryukova19 mkryukova19
  • 24-04-2018
4cos(x)-2cos(x)=1+2cos(x)-2cos(x)
2cos(x)=1
cos(x)=1/2 (Positive cos are only in the first and 4th quadrants.)
x=π/3, 
x=2π - π/3 = 5π/3
Answer Link

Otras preguntas

The population of Medfield is 7000. Capital City's population is 8/25ths of Medfield's. What is Capital City's population? A.280 B.2240 C.21,875 D.56,000
how would you type out how you showed your work
How do you do this I need help
Malicious software can be hidden in a ________
how many moles of c6h12o6 are consumed if 6 moles of o2 are consumed
When trying to solve a social problem science does not take into account A- existing scientific theories B-opinions and beliefs C-existing scientific laws D-
Suppose you are looking at a yellow fish in a dark tank. The tank is next to a window. Describe the path that light takes in order for you see the fish , starti
Certain types of atoms break down at a known rate. A scientist can measure the amounts of broken down products presents in a sample to calculate its age. What
PLLLLEEEASE HELLLPWhy is it ironic that Oedipus curses Laius's murderer? A. because he's looking for the murderer B. because he is the murderer C. because Teire
hi? [tex] \sqrt{x} \frac{x}{y} [/tex]