FP2.7.2 - Area and tangents in polar coordinates

β The ability to find tangents parallel to, or at right angles to, Use of the formula 1 ∫ r2 dθ 2 the initial line is expected. α for area.

Use fp2.7.2 - area and tangents in polar coordinates to connect the rule to the data and decision in the question.

This matters because fp2.7.2 - area and tangents in polar coordinates determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply fp2.7.2 - area and tangents in polar coordinates to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: FP2.7.2 - Area and tangents in polar coordinates is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.