OCR A-level Mathematics A · H240
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Extreme practice · Multi-step problems within A-level pure maths. Difficulty is an editorial judgement. These questions are self-reviewed, not ranked.
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Original topic practice. This set is not a full official paper. Written work is self-reviewed against our worked solutions.
Angles are measured in radians. Consider , , with .
Determine the number of solutions for every possible value of k.
[5]
When , give all solutions exactly, using inverse trigonometric functions where necessary.
[5]
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