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Sum of 3rd and 15th element …

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Sum of 3rd and 15th element of an AP. is equal to sum of 6th ,11th & 13th elements of same progression. then which element of series should necessarily be equal to zero

    • Posted by Yash Goswami????? 6 years, 3 months ago

    CBSE > Class 11 > Mathematics
    • 8 answers

    Yash Goswami????? 6 years, 3 months ago

    Bhai pranshu laga liya pr answer nahi aa raha h

    0Thank You

    Pranshu Baghel 6 years, 3 months ago

    Use the formula S=n/2(2a+(n-1)d)

    1Thank You

    Yash Goswami????? 6 years, 3 months ago

    Bhaiyo que.ka answer bhi kr do agar apsi patlaiya khatam ho gayi ho to

    0Thank You

    Robinpreet Kaur 6 years, 3 months ago

    How r u ?

    1Thank You

    #Aditi~ Angel???? 6 years, 3 months ago

    Hi pret

    1Thank You

    Robinpreet Kaur 6 years, 3 months ago

    Hello Aditi

    1Thank You

    #Aditi~ Angel???? 6 years, 3 months ago

    Hi angel chauhan....my title is also angel

    1Thank You

    Angel Chauhan 6 years, 3 months ago

    XYZ Co. is providing facilities for their female staff like day care centre for kids and work from home facility. By doing this they are following social responsibilities towards which interest group? Also, what values are they presenting?

    1Thank You

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