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    Mathematics A-Level

    product law

    What product law means in Mathematics A-Level, as defined for WJEC.

    Definitions of product law

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    Reference: WJEC

    The sum of two logarithms sharing the same base equals the logarithm of their product, for positive arguments.
    WJEC · Exponentials and logarithms (AS Unit 1: Pure Mathematics A)
    The addition law states logₐ x + logₐ y = logₐ (xy), corresponding to aᵐ aⁿ = a^(m+n).
    WJEC · Exponentials and logarithms (AS Unit 1: Pure Mathematics A)

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