यदि 𝒂𝟐+𝒃𝟐+𝒄𝟐=𝟐(𝒂−𝒃−𝒄)−𝟑 तो a + b + c का मान क्या होगा –

  • 1

    1

  • 2

    -1

  • 3

    -2

  • 4

    2

Answer:- 2

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