IB skill practice

Use reciprocal trigonometric identities

Apply reciprocal identities and restrictions in trigonometric equations.

Paper 1, Paper 2 5 marks Difficulty 4

Use reciprocal trigonometric identities - diagram confirmation

A right-triangle model has adjacent side \(3\) and opposite side \(5\), so \(\cot\theta=3/5\). Enter \(\csc^{2}\theta\).

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.