# Blog

## What is tangent number in math? ## What is the tangent of a few selected angles?

• Then, locate the number that is located in the same row as 35 degrees and the same column as the 'Tangent' title. Using this strategy and the table above, here is what the tangent of a few selected angles is equal to. Tangent (4 degrees) = 0.0699

## What are the properties of the tangent function?

• Below are a number of properties of the tangent function that may be helpful to know when working with trigonometric functions. A cofunction is a function in which f (A) = g (B) given that A and B are complementary angles. In the context of tangent and cotangent, Referencing the unit circle shown above, the fact that , and , we can see that:

## What is the tangent of tan90°?

• The period of the function is 360° or 2π radians. You can rotate the point as many times as you like. This means you can find the tangent of any angle, no matter how large, with one exception. If you look at the graph above you see that tan90° is undefined, because it requires dividing by zero.  