1/1×4+1/4×7+1/7×10+1/13×16…………+1/16×19 का मान क्या है -

  • 1

    𝟓/𝟏𝟗

  • 2

    𝟔/𝟏𝟗

  • 3

    𝟖/𝟏𝟗

  • 4

    𝟗/𝟏𝟗

Answer:- 2

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