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Kisachek [45]
2 years ago
10

What would be the answer

Mathematics
1 answer:
sashaice [31]2 years ago
6 0

Answer:

I think It's option (B) 45

Step-by-step explanation:

But I am not sure It's correct or not

I hope It's helpful

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Literally answer any of the questions above and it’ll be the biggest help
Tcecarenko [31]

The cosine of an angle is the x-coordinate of the point where its terminal ray intersects the unit circle. So, we can draw a line at x=-1/2 and see where it intersects the unit circle. That will tell us possible values of θ/2.

We find that vertical line intersects the unit circle at points where the rays make an angle of ±120° with the positive x-axis. If you consider only positive angles, these angles are 120° = 2π/3 radians, or 240° = 4π/3 radians. Since these are values of θ/2, the corresponding values of θ are double these values.

a) The cosine values repeat every 2π, so the general form of the smallest angle will be

... θ = 2(2π/3 + 2kπ) = 4π/3 + 4kπ

b) Similarly, the values repeat for the larger angle every 2π, so the general form of that is

... θ = 2(4π/3 + 2kπ) = 8π/3 + 4kπ

c) Using these expressions with k=0, 1, 2, we get

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An experiment involves flipping a coin three times.
Xelga [282]

Answer:

19/50

Step-by-step explanation:

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PLEASE HELP!!! Simplify the expression.
Ilia_Sergeevich [38]

Answer:

 2d

 ——

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Step-by-step explanation:

           c - d

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            cd  

          1

Simplify   —

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Equation at the end of step  2  :

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 (— +  —) -  ———————

  c    d       cd  

Step  3  :

           1

Simplify   —

           c

Equation at the end of step  3  :

  1    1     (c - d)

 (— +  —) -  ———————

  c    d       cd  


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