Question

Can you show how to find the solution of number 10 on a unit circle

Answer 1

cos(11π/3) = 1/2

Step-by-step explanation:

To find the value of cos(11π/3), we first need to find a coterminal angle. This is because 11π/3 is greater than 2π, which is the angle of the complete circle. Then, we can find the coterminal angle as

11π/3 - 2π = 5π/3

Now, we need to find cos(5π/3), so we will use the unit circle as follows

Therefore, the value of cosine is the first coordinate of the point in the unit circle. It means that

cos(5π/3) = 1/2

Then, cos(11π/3) = 1/2

So, the answer is

cos(11π/3) = 1/2