InterviewSolution
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InterviewSolution
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यदि `a+b+c=0` तो `a^(3)+b^(3)+c^(3)` का मान ज्ञात कीजिए?A. `abc`B. `2abc`C. `3abc`D. `0` |
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Answer» Correct Answer - C `a+b+c=0` `a^(3)+b^(3)+c^(3)=T` `a^(3)+b^(3)+c^(3)-3abc` `=1/2(a+b+c)[(a-b)^(2)+` `(b-c)^(2)+(c-a)^(2)]` `a^(3)+b^(3)+c^(3)-3abc=0` `a^(3)+b^(3)+c^(3)=3abc` |
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