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JEE Main & Advanced Mathematics Sequence & Series Question Bank Numerical Value Type Questions - Sequences and Series

  • question_answer
    The sum of the following series \[1+6+\frac{9({{1}^{2}}+{{2}^{2}}+{{3}^{2}})}{7}+\frac{12({{1}^{2}}+{{2}^{2}}+{{3}^{2}}+{{4}^{2}})}{9}\] \[+\frac{15({{1}^{2}}+{{2}^{2}}+....+{{5}^{2}})}{11}+....\] up to 15 terms, is:

    Answer:

    7820


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