n Learning and Teaching Mathematics - Limitations in the value of sine and cosine

Volume 2019 Number 26
  • ISSN : 1990-6811


Trigonometric functions are occasionally incorporated into otherwise algebraic equations in order to increase the complexity of the question. While this is a clever way of assessing algebraic as well as trigonometric knowledge within the same question, it is not without its complications. This article illustrates how limitations in the maximum and minimum values of the sine and cosine functions might impact on such questions. Two examples are presented and explored, and possibilities for extension activities are suggested.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error