यदि 𝒂−𝒃 = 5 और 𝒂𝟐+𝒃𝟐 = 31 तो 𝒂𝒃 का मान ज्ञात करें?

  • 1

    4

  • 2

    5

  • 3

    2

  • 4

    3

Answer:- 4

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