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Math and Arithmetic

What is the unit circle?


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Answered 2008-10-30 19:48:04

The unit circle is a circle that can be used to find trigonometric functions. The equation of the unit circle is x^2 + y^2 = 1. So it is any circle with radius 1.

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If the radius is two. it won't be a unit circle, a unit circle is defined as a circle with radius one.


The unit circle is a circle with its center at the origin and a radius of ' 1 '.


A unit circle is a circle with radius equal to one.


It is unknown who created the unit circle. Pythagoras did a lot of work related to the unit circle. In ancient times, Greek, Indian, and Arabian mathematicians used the unit circle.


A unit circle is not normally called 2 pi. Because the radius length measure of the unit circle is 1 unit, then the circumference of a unit circle is 2*pi, and its area is pi.


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There really isn't much to memorize. The unit circle is a circle with a radius of 1.


A unit circle is one that has a radius of one. One = Unit, and hence the name.


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Since the radius of the unit circle is 1, the circumference is 2 x pi.


A 'unit cube'. Just like a circle with radius 1 and center at (0,0) is a 'unit circle'.


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Here is a time-line that shows the history of the unit circle dating back to 250 B.C.


A unit circle is a circle of radius 1. If it's center is at the origin of an xy-coordinate system, then the equation is x (squared) + y (squared) = 1


If x2 + y2 = 1, then the point (x,y) is a point on the unit circle.


To calculate the area of a unit circle you should use the equation x2+y2=1. The unit circle equal area of 1. You can find out more information on the mathisfun website for deeper explanation.


Pi over 12 on a radian unit circle is a little more than a quarter of the circle. Radian units are an alternative to degrees.


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A unit circle is in the coordinate plane where both axes are measured in real numbers. The imaginary circle is in the complex plane in which one axis (horizontal) measures the real component of a complex number and the other axis measures the imaginary component.


The area of a 6 unit circle is: 28.27 square units.


The basic idea is that a complete turn around the unit circle has a length of 2 x pi (i.e., approximately 6.28). For numbers larger than 2 x pi, you go that distance around the unit circle, moving around it more than once - and eventually end up on some point on the unit circle. For example, if you go a distance of 3 x pi around the unit circle, that is equivalent of a distance of pi (equal to 180 degrees). For negative numbers, you simply move around the unit circle in the opposite direction.


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All complex number that can be represented by the coordinates of points on the unit circle, that is, the circle with its centre at the origin and a radius of 1 unit.


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A 1.4-unit diameter circle has an area of 1.539 square units.



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