Summation of finite series

Summation of finite series Quiz

Spec 7.1 · Edexcel International A Level Further Maths: Quiz

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  1. 1. Find ∑r=1n5\sum_{r=1}^{n}5.

    • A. 55
    • B. n+5n+5
    • C. 5n25n^2
    • D. 5n5n

  2. 2. Find ∑r=112r\sum_{r=1}^{12}r.

    • A. 6666
    • B. 7272
    • C. 7878
    • D. 156156

  3. 3. Find ∑r=16r2\sum_{r=1}^{6}r^2.

    • A. 9191
    • B. 2121
    • C. 441441
    • D. 3636

  4. 4. Find a simplified expression for ∑r=1n(r2+r)\sum_{r=1}^{n}(r^2+r).

    • A. n(n+1)(2n+1)6\frac{n(n+1)(2n+1)}{6}
    • B. n2(n+1)22\frac{n^2(n+1)^2}{2}
    • C. n(n+1)(n+2)6\frac{n(n+1)(n+2)}{6}
    • D. n(n+1)(n+2)3\frac{n(n+1)(n+2)}{3}

  5. 5. Find ∑r=110(3r−1)\sum_{r=1}^{10}(3r-1).

    • A. 165165
    • B. 155155
    • C. 145145
    • D. 150150

Quiz