InterviewSolution
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InterviewSolution
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यदि `a+b+c=0` है तो `(a+b-c)^(2)+(b+c-a)^(2)+(c+a-b)^(2)` का मान ज्ञात करें। |
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Answer» Correct Answer - C `(a+b-c)^(2)+(b+c-a)^(2)+(c+a-b)^(2)=?` `impliesa+b+c=0` (given) `implies a+b=-c` `implies b+c=-a` `implies a+c=-b` `implies (a+b-c)^(2)+(b+c-a)^(2)+` `(c+a-b)^(2)` `implies(-c-c)^(2)+(-a-a)^(2)+(-b-b)^(2)` `implies (-2c)^(2)+(-2a)^(2)+(-2b)^(2)` `implies 4c^(2)+4a^(2)+4b^(2)` `implies 4a^(2)+b^(2)+c^(2)` |
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