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1+2+3+4+----------+n=?

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1+2+3+4+----------+n=?

    • Posted by Prateek Kumar 4 years, 2 months ago

    CBSE > Class 12 > Mathematics
    • 5 answers

    Usha Yadav 4 years, 2 months ago

    This is an AP Form We are to calculate the sum of number up to N- Terms Using for.formula 2a+ (n-1)d Here a=1 d = 1 So, 2+(n-1) If sum is Given then equal To it...... You will get the Answer...Definitely.... Hope it would help you .........

    2Thank You

    Mohit Jaiswal 4 years, 2 months ago

    Since the series is in AP with a=1 and d=1. S= n[2a+(n-1)d]/2 = n(2+n-1)/2 =n(n+1)/2

    1Thank You

    Iqbal Singh 4 years, 2 months ago

    n(n+1)/2

    1Thank You

    Suryakant Swain 4 years, 2 months ago

    n(n+1)/2

    1Thank You

    Kunal Attri 4 years, 2 months ago

    n(n+1) /2

    1Thank You

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