यदि a और b पूर्ण संख्याएँ है यथा 𝒂𝒃= 121, तो (𝒂−𝟏)𝒃+𝟏 =? -

  • 1

    100

  • 2

    900

  • 3

    1000

  • 4

    1210

Answer:- 3

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