OCR GCE A LEVEL MATHEMATICS B PAPER 3 QUESTION PAPER 2023 (H640/03: Pure Mathematics and Comprehension)
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OCR GCE A LEVEL MATHEMATICS B PAPER 3 QUESTION PAPER 2023 (H640/03: Pure Mathematics and Comprehension). DOWNLOAD OFFICIAL AND VERIFIED OCR GCE A LEVEL MATHEMAT...
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OCR GCE A LEVEL MATHEMATICS B PAPER 3 QUESTION PAPER 2023 (H640/03: Pure Mathematics and Comprehension). DOWNLOAD OFFICIAL AND VERIFIED OCR GCE A LEVEL MATHEMATICS B PAPER 3 QUESTION PAPER 2023 ON www.leakedexams.com.


 


 In this question you must show detailed reasoning.
The obtuse angle i is such that sin
13
2 i = .
Find the exact value of cos i. [3]
2 The straight line y x = -5 2 is shown in the diagram.
y
O x
(a) On the copy of the diagram in the Printed Answer Booklet, sketch the graph of y x = -5 2 .
[1]
(b) Solve the inequality 5 2 - x 1 3. [3]


 


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