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    Question

    If S = 1³ + 2³ + 3³ + … + n³, find S when n =

    10.
    A 2025 Correct Answer Incorrect Answer
    B 3025 Correct Answer Incorrect Answer
    C 3320 Correct Answer Incorrect Answer
    D 1520 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Formula: S = [n(n+1)/2]² = [10×11/2]² = 55² = 3025.

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