Khan exercises Maths Tools 1
Determine w=cos(512π){\color{orange}w} = \cos \left(\dfrac{5}{12}\pi\right) w=cos(125π).
w=cos(512π){\color{orange}w} = \cos \left(\dfrac{5}{12}\pi\right) w=cos(125π)
w=\color{orange}w =w=