If n is an even number,all of the following must also be even except

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If n is an even number,all of the following must also be even except

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Thu Nguyệt 4 years 2021-08-14T08:59:46+00:00 1 Answers 19 views 0

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  1. thucuc
    0
    2021-08-14T09:01:45+00:00
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    Answer:

    (a)\ n+1

    Step-by-step explanation:

    Given

    n \to even

    Required

    Which cannot be even

    To do this, we assume an even number for n;

    Assume that n = 4

    So, we have:

    (a)\ n+1

    n +1 = 4 + 1 = 5 — this is odd

    (b)\ n+2

    n +2 = 4+2 = 6 —- this is even

    (c)\ 2n

    2n = 2 * 4 = 8 — this is even

    (d)\ n^2

    n^2 = 4^2 = 16 — this is even

    Hence, (a) can’t be even

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