C.0.6—Trigonometric calculator functions

Use calculators for sin, cos and tan when angles are expressed in degrees or radians, including calculating the direction of resultant vectors.

Use c.0.6—trigonometric calculator functions to connect the rule to the data and decision in the question.

This matters because c.0.6—trigonometric calculator functions determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c.0.6—trigonometric calculator functions to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: C.0.6—Trigonometric calculator functions is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.