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    Mathematics A-Level

    irrationality of √2

    What irrationality of √2 means in Mathematics A-Level, as defined for WJEC.

    Definition of irrationality of √2

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    Reference: WJEC

    Proved by assuming √2 = a/b in simplest form, showing a and b are both even, which contradicts the assumption that they have no common factors.
    WJEC · Proof (A2 Unit 3: Pure Mathematics B)

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