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    If p, q, r are al real numbers, then (p-q)³ +(q-r)³+(r-p)³ is equal to

    (a) 0
    (b) 3(p-q)(q-r)(r-p)
    (c) (p-q)(q-r)(r-p)
    (d) 1

    Asked by Anurag Mishra on 24th March 2016 in Maths.
    1 Answers
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    Ans is (b)

    Answered by mritunjay on 26th March 2016..