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OCR H240/02 PURE AND STATISTICS MOCK
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6

June 2025

2024/2025

A+
OCR H240/02 PURE AND STATISTICS MOCK Proof - CORRECT ANSWER-Proof by deduction- 1. let nEZ 2. therefore... Proof by exhaustion- trying all the possibilities Proof by contradiction- assume the opposite Solving equations: algebra techniques - CORRECT ANSWER- Functions - CORRECT ANSWER-ONE-TO-ONE: one value of x = one value of y ONE-TO-MANY: one value of x = two values of y MANY-TO-ONE: two values of x = one value of y MANY-TO-MANY: two values of x = two values of y Domain and R...
GREATPASSEXAM
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Exam (elaborations)

OCR A LEVEL PURE MATHS
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22

June 2025

2024/2025

A+
OCR A LEVEL PURE MATHS Inversing a line on a graph - CORRECT ANSWER-Coordinates reverse = y point becomes x point and vice versa Gradient become reciprocal e.g. gradient of 3 become gradient of 1/3 on inversed line Gradient definition - CORRECT ANSWER-Rate of change In a question asking about rate of change - CORRECT ANSWER-Always differentiate Chain rule - CORRECT ANSWER-dy/dx = dy/du x du/dx Using chain rule - CORRECT ANSWER-Let u = brackets Differentiate for dy/du Let y = u^...
GREATPASSEXAM
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