Question: Suppose f is a continuous positive decreasing function for x > 1 and an = f (n). By drawing a picture, rank the following three

Suppose f is a continuous positive decreasing function for x > 1 and an = f (n). By drawing a picture, rank the following three quantities in increasing order: 6 9. Γωα Σαι aι |f(x) dx Σ i-1 i-2 νο | ν

6 9. a |f(x) dx i-1 i-2 |

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