Respuesta :
The point P forms a triangle with
base length x (adjacent to our angle theta)
and height y (opposite our angle theta)
and hypotenuse 1 (because the radial length of the unit circle is 1).
cotangent theta = adjacent / opposite
cotangent theta = x / y
base length x (adjacent to our angle theta)
and height y (opposite our angle theta)
and hypotenuse 1 (because the radial length of the unit circle is 1).
cotangent theta = adjacent / opposite
cotangent theta = x / y