You probably have an intuitive idea of what a circle is: the shape of a basketball hoop, a wheel or a quarter. You may even remember from high school that the radius is any straight line that starts ...

Trigonometric functions is one of the basic Elementary function, which takes the angle (the most commonly used radian system in mathematics, the same below) as the independent variable, and the ...

Part of that is the way it's taught. Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions.

Spread the loveThe unit circle is an essential concept in mathematics, particularly in trigonometry. Understanding the unit circle makes it easier to grasp the foundation of many concepts, such as ...

You probably have an intuitive idea of what a circle is: the shape of a basketball hoop, a wheel or a quarter. You may even remember from high school that the radius is any straight line that starts ...

A unit circle is an important part of trigonometry and can define right angle relationships known as sine, cosine and tangent.

You probably have an intuitive idea of what a circle is: the shape of a basketball hoop, a wheel or a quarter. You may even remember from high school that the radius is any straight line that starts ...

A unit circle is an important part of trigonometry and can define right angle relationships known as sine, cosine and tangent.