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pearson edexcel gce question booklet mark scheme results november 2021 further mathematics advanced level in further mathematics paper 9fm0-4a

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pearson edexcel gce question booklet mark scheme results november 2021 further mathematics advanced level in further mathematics paper 9fm0-4a 2. A binary operation  on the set of non‑negative i ... ntegers, +0, is defined by m  n = ½m – n½ m, n ∈ +0 (a) Explain why +0 is closed under the operation  (1) (b) Show that 0 is an identity for (+0, ) (2) (c) Show that all elements of +0 have an inverse under  (2) (d) Determine if +0 forms a group under , giving clear justification for your answer. (3) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ ______________________________________________________ [Show More]

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