Question

Pls solve this, it’s math


And only if you know the answer pls

Answer 1

Since the unit circle has a radius of 1 we know that r = 1 and that our angle is 60 degrees. Using sin and cos functions we can then find the x and y coordinates of point A. since
`cos(\alpha ) = (x)/(1)` and
`sin(\alpha ) = (y)/(1)` (where
`\alpha` = the angle)

`A = (x,y) = (cos(a),sin(a))` because of the identity that cos(a) = x and sin(a) = y

Using the angle and the previously described identity we can find the coordinates with cos(60) = x = 1/2 and sin(60) = y =
`(√(3) )/(2)` to get A =(x,y) =
`((1)/(2),(√(3) )/(2))`.

From here we can work backwards and find that BC = x =
`(1)/(2)` and that AC = y =
`(√(3) )/(2)` and finally we know that AB = r = 1 because it is a radius of the unit circle and must be 1.

-This probably isn't the way you were taught to solve this problem, but it is how we do it in physics and real-life.