themaster66644 themaster66644
  • 10-12-2018
  • Mathematics
contestada

what is the value of cos-1(-1/2)

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 10-12-2018

Answer:

120 degrees or 2 pi/3

Step-by-step explanation:

cos ^ -1 (-1/2)


Using the unit circle, we look for the x value of -1/2.  Cos is the x value, sin is the y value.  We find -1/2 at 120 degrees or 2 pi/3


Ver imagen wegnerkolmp2741o
Answer Link
AlienFlo
AlienFlo AlienFlo
  • 08-04-2021

Answer:

2pi/3

Step-by-step explanation:

PLATO ANSWER

Answer Link

Otras preguntas

How tall is a stack of ten pennies in centimeters?
How many areas are bordered by other land areas?
What is the BEST definition of "civic virtue"? a. behavior skills and habits of citizens that are constructive to democracies b. personality traits that disti
What is the relationship between hypothesizing and experimenting in science
what is 43/100 simplified.
Given m angle 1 = (2x+7) degrees and m angle 2 = (6x-9) degrees, find the measure of each angle if the angles are complementary.
What is the radius of a circle with circumference 17mm? Round to nearest tenth. Use 3.14
What is 67.24 in a mixed number
When you subtract one negative integer from another will your answer be greater than or less than the integer you started with explain your reasoning and give a
No irrational numbers are whole numbers true or false