JEE Main 27-Aug-2021 Shift 1 Solved Paper

Section: Mathematics

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Question : 73 of 90

Marks: +1, -0

20

∑

k=0

(‌20Ck)2 is equal to

[27 Aug 2021 Shift 1]

‌40C21
‌40C19
‌40C20
‌41C20

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