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JEE Mains 1-Feb-2023 Shift 2 Solved Paper

Section: Mathematics
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Question : 85 of 90
 
Marks: +1, -0
If
Ï€
∫
0
‌
5cos‌x(1+cos‌x‌cos‌3‌x+cos2x+cos3x‌cos‌3‌x)‌dx
1+5cos‌x
=‌
kπ
16
, then k is equal to ______.
[1-Feb-2023 Shift 2]
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