math

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input 2,4 and 10 output 5,9 and 21 I do not get it at all please help me.

  • math -

    Input + 2n + 1 = Output

  • math -

    Sorry again but what does 2n mean. Thank you.

  • math -

    2n = 2 times n

    (2 * 2) + 1 = 5

    (4 * 2) + 1 = 9

    (10 * 2) + 1 = 21

  • math -

    output = 2 n + 1
    if n = 2,
    output = 2*2 + 1 = 5
    if n = 10
    output = 2*10 + 1 = 21

  • math -

    Thank you Ms.Sue and Damon you guys really have helped me a lot.

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