Edexcel C12 Specimen — Question 14

Exam BoardEdexcel
ModuleC12 (Core Mathematics 1 & 2)
SessionSpecimen
TopicTrig Equations

  1. In this question you must show all stages of your working. (Solutions based entirely on graphical or numerical methods are not acceptable.)
    1. Solve for \(0 \leqslant x < 360 ^ { \circ }\), giving your answers in degrees to 1 decimal place,
    $$3 \sin \left( x + 45 ^ { \circ } \right) = 2$$
  2. Find, for \(0 \leqslant x < 2 \pi\), all the solutions of $$2 \sin ^ { 2 } x + 2 = 7 \cos x$$ giving your answers in radians.
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