JEE Mains 02-Sep-2020 Shift 1 Solved Paper

Section: Mathematics

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Question : 73 of 75

Marks: +1, -0

If

lim

x→1

x+x2+x3+.....+xn−n

x−1

=820,(n∈N) thenthe value of n is equal to ______.

[2 Sep 2020 Shift 1]

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