Cos (cofunction of sin, tan or sec), cot (cosec) and cosec (cofunction of cofunctions of cos, cot and cosec) are prefixed by “co”. Here is a discussion of the relationship between the basic trigonometric functions. Their arguments form complementary angles. You can learn the cofunction identities in degrees and radians using the trigonometric identity chart. Also, practice exercises such as solving and evaluating trigonometric function. These handouts can be printed for students in high school. Take a look at these worksheets!
These printable Cofunction Identities Worksheets that you can download and print at home. Start using printables Formulas worksheets. to help in the development of your children.