AS 91575 · 4 credits · Internal
Trigonometric methods
Apply trigonometric methods in solving problems
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This achievement standard asks you to solve real-world and mathematical problems using trigonometry. You need to pick the right trigonometric methods (like identities, equations, or reciprocal functions) and show that you understand what you're doing as you work through each step. This is an internal assessment, so your teacher will mark it.
What to do, grades and common mistakes
- ·Select and use appropriate trigonometric methods to solve the problem
- ·Demonstrate knowledge of trigonometric concepts and terminology (identities, reciprocal functions, properties of trig functions, equation solving, general solutions)
- ·Show your working clearly and communicate your reasoning with appropriate mathematical statements and representations
- ·Work through a logical sequence of steps to reach your answer
- ·Connect different concepts or representations to justify your solution
You successfully apply trigonometric methods to solve the problem, showing you understand the concepts and explaining what you did.
You connect different trigonometric concepts together and follow a logical sequence of steps, showing that you understand how the pieces fit into the overall problem.