Quiz problem

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  • #30007
    Aniruddha Bardhan
    Participant

    See the attachment.

    My approach: There are even number of term.  Let 1st 1003 terms give R as remainder when divided by  2007. So last 1003 terms give -R when divided by 2007 as power is odd. So expression is divided by 2007. but given ans is none of this.

     

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    #30502
    Nitin Prasad
    Participant

    Yeah, your answer is correct again.

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