Question

    If a = 7.250, b = 3.258 and c = 3.992 then value of

    a3-b3-c3-3abc is.
    A 1 Correct Answer Incorrect Answer
    C 2 Correct Answer Incorrect Answer
    D 3 Correct Answer Incorrect Answer

    Solution

    we know that if a+b+c = 0 then Here a = 7.250, b = 3.258 and c = 3.992  and a+(-b)+(-c)=0 so by the above formula OR OR

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