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प्रश्न
If (1 + x)n = C0 + C2x + C2Xn then `"C"_1/"C"_0 + "2C"_2/"C"_1 + "3C"_3/"C"_2+ .......+ "nC"_"n"/"C"_"n-1"` is equal to:
विकल्प
`("n"("n+1"))/2`
`("n"("n"^2+1))/2`
`("n"("n+1"))/(2!)`
`("n"("n - 1"))/2`
MCQ
उत्तर
`("n"("n+1"))/2`
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Number System (Entrance Exam)
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