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यदि x+y=z हो, तो व्यंजक x^3 + y^3 -z^3 + 3xyz का मान क्या होगा ?
आपका जवाब गलत है
x+y=z , x+y +(-z) =0 x^3 + y^3 -z^3 + 3xyz x^3 + y^3 +(-z)^3 -3xy(-z) =0