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

Simplify the expression. 4(y + 11) - 10
Pls help!! will give brainly! Write one question asking your friend when he/she can go or wants the party using the correct form of the verb querer or poder. (e
formula of trigonometric ratios​
What is the purpose of the coating on a caplet? to increase absorption through the epidermis to increase the rate of dissolving on the tongue to lessen possible
Which sentence best explains how the bolded portion develops the authors ideas in this paragraph
QETJHSN. XGKDXBFX N.CCBX ..BDBZVDB.NDWHDSWGVB
Evaluate f(x)=x-2x+4 for f(-5)
Match each term to its correct description 1) Limiting reactant 2) Theoretical yield 3) Excess reactant a) Reactant that has some leftover at the end of the rea
How do you find the activities in Try Do This ​
If the pH of solution A is 10, and the pH of solution B is 2, then the concentration of H+ ions