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Find the sum of the series …

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Find the sum of the series up to N terms 1*3*7+2*6*11+3*9*15+...........

    • Posted by Ram Kumar 6 years, 6 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Vasu Deekshith 6 years, 6 months ago

    a=1d=2 TN =1+(n-1)2 =1+2n-2 =2n-1

    1Thank You

    Vasu Deekshith 6 years, 6 months ago

    Tn=a+(n-1)d

    1Thank You

    ANSWER
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