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A-Level MathematicsYear 2020Q13

36 13. (a) Prove that for all positive values of a and b 4a b b a +  4 (4) (b) Prove, by counter example, that this is not true for all values of a and b. (1) ___________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___________________________________________

Paper Source:8MA0_01_que_20201008.pdf

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Exam Specification Info

This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.

Syllabus levelAdvanced Level (A-Level)

SubjectMathematics

Official MarksVariable (2–6 marks)