JEE Advanced Model Paper 8 with solutions for online practice

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Question : 48 of 84
 
Marks: +1, -0
Given that
y
1
sec1
x dx = λ and for (|y| ≥ 1)
if
1
y
{sec1xtan1(x21)} dx +
y
{sec1xtan1(x21)} dx =
π (y - a) - bλ , then a + b = .....
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