Is there a way to get the end position to raycast to from an angle?

Im trying to cast a ray from the direction the player is looking but like slightly to the left or right. But I cant raycast from the player at an angle. So I have to tell it the position to raycast to. Is there a way to get that position based on an angle?

Ok, so I ended up doing it a lazy way. I pinned a long sprite to the end of the player and did a raycast to the end of that sprite. While this does work, I dont want to have to do this for multiple angles. There is probably a better way to do this using fancy math though.

For a given angle θ and a circle of radius r and center (h,k), recall that we can determine the Cartesian coordinates (x,y) of the point on the circle determined by θ and r, where

x=h+rcosθ , y=k+rsinθ

Since you don't care about radius in this particular application, it would be

x=self.x+cos(a)

y=self.y+sin(a)