यदि 𝒔𝒊𝒏 (𝒙+𝒚) = Cos [3(𝒙+𝒚)] है, तब tan [2(𝒙+𝒚)] का मान क्या होगा ?

  • 1

    𝟓

  • 2

    𝟕

  • 3

    𝟏

  • 4

    𝟑

Answer:- 3

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