JEE Main 8 Apr 2019 Paper 2 Solved Paper

Section: Mathematics

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Question : 64 of 90

Marks: +1, -0

The sum

20

∑

k=1

k

1

2k

is equal to

[8 Apr 2019 Shift 2]

1−
11
220
2−
3
217
2−
21
220
2−
11
219

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