JEE Main 1-Sep-2021 Shift 2 Solved Paper

Section: Mathematics

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Question : 70 of 90

Marks: +1, -0

Let Jn,m=

1

2

∫

0

xn

xm−1

dx, ∀n>m and n,m∈N .
Consider a matrix A=[aij]3×3 where
aii={

J6+i	, 3−Ji+3,	3	i≤j
‌	0	‌	i>j

then |adj‌A−1|‌is

[1 Sep 2021 Shift 2]

(15)2×242
(15)2×234
(105)2×238
(105)2×236

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