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(a)Find the sum of "n" terms of the seri...

(a)Find the sum of "n" terms of the series `2 + 4 + 6 + 8 ......`

Answer

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Knowledge Check

  • Find the sum to n terms of the series 3+6 + 10 + 16 + …

    A
    `(n(n-1))/(2) -1`
    B
    `n(n+1) + 2^n -1`
    C
    `n(n+1) + 1`
    D
    `3(2n+1)-2^n`
  • Find the sum to n terms of the series 3+6+10+16+....

    A
    `(n(n-1))/2-1`
    B
    `n(n+1)+2^n-1`
    C
    n(n+2)+1
    D
    `3(2n+1)-2^n`
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