OCR Stats 1 2018 December — Question 4

Exam BoardOCR
ModuleStats 1 (Statistics 1)
Year2018
SessionDecember
TopicTrig Equations
4 In this question you must show detailed reasoning.
  1. Show that \(\cos A + \sin A \tan A = \sec A\).
  2. Solve the equation \(\tan 2 \theta = 3 \tan \theta\) for \(0 ^ { \circ } \leqslant \theta \leqslant 180 ^ { \circ }\).
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