JEE Advanced 2020 Full Test 6 Paper 2

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Question : 47 of 54

Marks: +1, -0

If In=

π∕4

∫

0

tannxdx, then

In+In−2=‌
1
n−1
In+1+In−1=‌
1
n
‌
1
n+1
<2In<‌
1
n−1
, where n>1 is a natural number
(In+2+In)(n+1)=1

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