Cofunctions Worksheets

What Are Cofunctions? Cofunctions in trigonometry are function pairs like sine and cosine. a function f is cofunction of a function g if f(A) = g(B) whenever A and B are complementary angles. In Math, the two functions which are similar to each other are called cofunctions of each other as they are formed using the same angle. These functions complement each other. Well, in any triangle, we know the sum of the interior angles equals 180 degrees. In a right triangle, one of the angles is 90 degrees. Therefore, there are 90 degrees left between the other two angles. So, the sum of the other two angles must equal 90 degrees – so we say these two angles must be complementary!

Graph of Cofunctions

The graphical representation above shows the geometric representation of cofunctions.

The Difference Between Pure and Applied Math

Relations between pure and applied mathematicians are based on trust and understanding. Namely, pure mathematicians do not trust applied mathematicians, and applied mathematicians do not understand pure mathematicians.