Solving Trigonometric Equations: The Principal Value When finding solutions to circular functions it is best practice to solve for the first positive solution and using this as a reference for all ...

This resource revises circular functions and within circular functions there are 3 key concepts: The unit circle Solving trigonometric equations Circular function graphs. To determine if this resource ...

This study is an attempt to analyze students' construction of function based problem solving methods in introductory algebra. It claims that for functions to be a main concept for learning school ...