Tripura TET Math Science 2018 Solved Paper

Question : 105 of 150

Marks: +1, -0

If a+ b + c = 0, then the value of

\;{1}/{b^{2} + c^{2}−a^{2}} + \;{1}/{c^{2} + a^{2}−b^{2}} + \;{1}/{a^{2} + b^{2}−c^{2}}

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