JEE Main 28 Jan 2025 Shift 2 Paper

Section: Mathematics

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Question : 1 of 75

Marks: +1, -0

1. If

13

∑

r=1

{‌

1

sin‌(‌

π

4

+(r−1)‌

π

6

)sin‌(‌

π

4

+‌

rπ

6

)

}=a√3+b,a, b∈ℤ, then a2+b2 is equal to:

[28 Jan 2025 Shift 2]

2
8
10
4

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