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Understanding the Unit Circle - Mathematics Stack Exchange See the StackExchange thread Tips for understanding the unit circle, and note the distinction I make in my answer between what students often see as the unit circle and what teachers see as the unit circle
Distance Between Any Two Points on a Unit Circle As part of a larger investigation, I am required to be able to calculate the distance between any two points on a unit circle I have tried to use cosine law but I can't determine any specific manner in which I can calculate theta if the angle between the two points and the positive axis is always given
Understanding sine, cosine, and tangent in the unit circle In the following diagram I understand how to use angle $\\theta$ to find cosine and sine However, I'm having a hard time visualizing how to arrive at tangent Furthermore, is it true that in all ri
Problem comprehending the representation of complex numbers by a unit . . . In this context the unit circle is the set of complex numbers whose magnitude is one On the complex plane they form a circle centred at the origin with a radius of one It includes the value of 1 on the right extreme, the value 1i at the top extreme, the value -1 at the left extreme, and the value -1i at the bottom extreme